___________________________________________________________________ AEAST.....name used to denote an array containing the 'free' east-face area after blockages are deducted. ___________________________________________________________________
AHIGH.....name used to denote an array containing the 'free' high-face area after blockages are deducted.
___________________________________________________________________
ANORTH....name used to denote an array containing the 'free' north-face area after blockages are deducted.
___________________________________________________________________
AZDZ....determines the variation of DZ with Z distance. It must be set to GRND as a part of block for a setting the formulae for direct setting DZ.
____________________________________________________________________
AZXU....determines the variation of XULAST with Z distance. It must be set to GRND as a part of block for a setting the formulae to calculate the XRAT as the factor which will multiply XULAST.
____________________________________________________________________
AZYV....determines the variation of YVLAST with Z distance. It must be set to GRND as a part of block for a setting the formulae to calculate the YRAT as the factor which will multiply YVLAST.
____________________________________________________________________
BOX....function used as part of PLANT statement.
The syntax is :
MARK=BOX(MRK,XPP,YPP,ZPP,XSIZE,YSIZE,ZSIZE,
ANGXX,ANGXY,ANGXZ,ANGYX,ANGYY,ANGYZ,ANGZX,ANGZY,ANGZZ,
ROTANG)
It sets the MARK values equal to MRK inside the surface of three dimensional box placed on the grid.
The function has 17 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
XPP - X - coordinate of west south low vertice of the box;
YPP - Y - coordinate of west south low vertice of the box;
ZPP - Z - coordinate of west south low vertice of the box;
XSIZE - box size in X-direction;
YSIZE - box size in Y-direction;
ZSIZE - box size in Z-direction;
ANGXX - angle between X-axis of object coordinate system and
X-axis of reference cartesian frame, rad;
ANGXY - angle between X-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ANGXZ - angle between X-axis of object coordinate system and
Z-axis of reference cartesian frame, rad;
ANGYX - angle between Y-axis of object coordinate system and
X-axis of reference cartesian frame, rad;
ANGYY - angle between Y-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ANGYZ - angle between Y-axis of object coordinate system and
Z-axis of reference cartesian frame, rad;
ANGZX - angle between Z-axis of object coordinate system and
X-axis of reference cartesian frame, rad;
ANGZY - angle between Z-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ANGZZ - angle between Z-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ROTANG- angle of shifting reference cartesian frame in the
X-direction ( significant for CARTES=F), rad.
___________________________________________________________________
CFIPS .... is the reference interphase-transport coefficient.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
CINT(PHI) .... is the ratio of the bulk-to-interface transfer coefficient, for the variable indicated.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
CMDOT .... is the interphase mass transfer parameter.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
CO....name used to denote the 'coefficient' array, and which is used to set the coefficients of linearised-source expressions.
___________________________________________________________________
COI1(PHI)....name used to denote the inter-phase transfer coefficient from phase 1 to the interface in response to the command, CINT(PHI)=GRND .
___________________________________________________________________
COI2(PHI)....name used to denote the inter-phase transfer coefficient from phase 2 to the interface in response to the command, CINT(PHI)=GRND .
___________________________________________________________________
CP1 .... is the heat capacity at the constant pressure of the phase-1.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
CP2 .... is the heat capacity at the constant pressure of the phase-2.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
C1, C3, C5, C7, C9, C11, C13, C15, C17, C19, C21, C23, C25, C27, C29, C31, C33, C35....standard names used to denote first-phase concentration full-field variables.
___________________________________________________________________
C2, C4, C6, C8, C10, C12, C14, C16, C18, C20, C22, C24, C26, C28, C30, C32, C34....standard names used to denote second-phase concentration full-field variables.
___________________________________________________________________
D1DP....name used to denote the values for the derivative of the natural log of first-phase density with respect to pressure in response to the command, DRH1DP=GRND .
___________________________________________________________________
D2DP....name used to denote the values for the derivative of the natural log of second-phase density with respect to pressure in response to the command, DRH2DP=GRND .
___________________________________________________________________
DEN1....name used to denote the values for the densities of the first phase in response of command, RHO1=GRND
___________________________________________________________________
DEN2....name used to denote the values for the densities of the second phase in response of command, RHO2=GRND
___________________________________________________________________
DISPLC .... function used to add the displacements of solids to cell corner coordinates ( BFC=T) so that the distortion of the solid block is computed. Then it can be visualised by PHOTON to get the image of the possible solid shapes.
The syntax is
XC=DISPLC(scale1)
YC=DISPLC(scale2)
ZC=DISPLC(scale3)
It has one argument - the scale factor to magnify the contribution of displacements to corresponding cell corner coordinate. By default, all scales are set to unity.
=> Example:
{MXYZ30> XC=DISPLC(0.25)
{MXYZ30> YC=DISPLC(RG(1))
{MXYZ30> ZC=DISPLC(0.25*RG(2))
IF(ISWEEP.EQ.LSWEEP.AND.STORE(W1))
REGION(2,5,4,8,1,NZ)
___________________________________________________________________
DISPLS....function used to calculate the location and shape of solid object affected by displacements on XY plane of cartesian (CARTES=T) grids.
It does so by re-calculation of resulting locations for each solid cell marked by certain PRPS value. Then PHOTON can be used to display the new solid shape.
The syntax is
PRPS=DISPLS(PRPM, XSCALE, YSCALE )
It has three arguments, namely (in order):
PRPM - PRPS value which is to be associated with solid cells;
XSCALE - the scale factor to magnify the contribution of
displacements to the shifting solid cells in
X-direction.
YSCALE - the scale factor to magnify the contribution of
displacements to the shifting solid cells in
Y-direction.
By default, all scales are set to unity.
For example, the statement
{SC0601> PRPS=DISPLS(111., SCAL[1,1,1],RG(1)*SCAL[1,3.1])
provides the calculation of displacement affected steel (PRPS=111.) cell movements at the end of each z-slab with scale factors taken from field distribution of SCAL variable.
___________________________________________________________________
DRH1DP .... is the compressibility of the phase-1.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
DRH2DP .... is the compressibility of the phase-2.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
DT....is the name used to denote the values for the current time-step sizein response of command, TLAST=GRND
___________________________________________________________________
DTFALS(PHI)....name used to denote value of false-time-step of under-relaxation for the variable indicated, and which is used to set the specific expressions.
___________________________________________________________________
DXG2D....name used to denote the values of the distances in the IX-direction between centres of continuity cells.
___________________________________________________________________
DXU2D....name used to denote the values of the distances in the IX-direction between walls of continuity cells, where are stored the u velocity resolutes.
___________________________________________________________________
DYG2D....name used to denote values of the distances in the IY-direction between centres of continuity cells.
___________________________________________________________________
DYV2D....name used to denote the values of the distances in the IY-direction between walls of continuity cells, where are stored the v velocity resolutes.
___________________________________________________________________
DZ....name used to denote the the current width of the slab, and the forward-step size in parabolic calculations in response of the command, AZDZ=GRND.
___________________________________________________________________
DZG....is the distance between the cell centres of the current-slab cell and the high slab-cell.
___________________________________________________________________
DZGL....is the DZG of the low-slab.
___________________________________________________________________
DZGNZ....name used to denote values of the distances in the IZ-direction between centres of continuity cells.
___________________________________________________________________
DZL....is the z-thickness of the previous slab.
___________________________________________________________________
DZRAT....is set in EARTH to DZ / DZL.
___________________________________________________________________
DZWNZ....name used to denote values of the distances in the IZ-direction between cell faces.
___________________________________________________________________
EAST(PHI)....name used to denote the value of PHI on the east side of the cell in question.
___________________________________________________________________
EL1 .... is the mixing length scale of the first-phase fluid.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
EL2 .... is the mixing length scale of the second-phase fluid.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
ELLPSD...function used as part of PLANT statement.
The syntax is:
MARK=ELLPSD(MRK,XPP,YPP,ZPP,XAX,YAX,ZAX,
ANGXX,ANGXY,ANGXZ,ANGYX,ANGYY,ANGYZ,ANGZX,ANGZY,ANGZZ,
ROTANG)
It sets the MARK values equal to MRK inside the surface of three dimensional ellipsoid placed on grid.
The function has 16 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
XPP - X - coordinate of ellipsoid centre;
YPP - Y - coordinate of ellipsoid centre;
ZPP - Z - coordinate of ellipsoid centre;
XAX - half axis size in X-direction;
YAX - half axis size in Y-direction;
ZAX - half axis size in Z-direction;
ANGXX - angle between X-axis of object coordinate system and
X-axis of reference cartesian frame, rad;
ANGXY - angle between X-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ANGXZ - angle between X-axis of object coordinate system and
Z-axis of reference cartesian frame, rad;
ANGYX - angle between Y-axis of object coordinate system and
X-axis of reference cartesian frame, rad;
ANGYY - angle between Y-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ANGYZ - angle between Y-axis of object coordinate system and
Z-axis of reference cartesian frame, rad;
ANGZX - angle between Z-axis of object coordinate system and
X-axis of reference cartesian frame, rad;
ANGZY - angle between Z-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ANGZZ - angle between Z-axis of object coordinate system and
Y-axis of reference cartesian frame, rad;
ROTANG- angle of shifting reference cartesian frame in the
X-direction ( significant for CARTES=F), rad.
___________________________________________________________________
ENUL .... is the laminar kinematic viscosity.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
ENUT .... is the turbulent kinematic viscosity.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
FII1(PHI)....name used to denote the values of the current phase-1 variable at the phase interface in response to the command, PHINT(PHI)=GRND.
___________________________________________________________________
FII2(PHI)....name used to denote the values of the current phase-2 variable at the phase interface in response to the command, PHINT(PHI)=GRND.
___________________________________________________________________
GREAT....A large number, used in EARTH. Do not re-set. The default value may be re-set during installation to suit the precision of the computer.
___________________________________________________________________
H1....standard name used to denote first-phase enthalpy. The H1 term may be conveniently used to denote first-phase temperature, in which case the term may be reNAMEd (eg to 'TEMP').
___________________________________________________________________
H2....standard name used to denote second-phase enthalpy.
___________________________________________________________________
HIGH(PHI)....name used to denote the value of PHI on the high side of the cell in question.
___________________________________________________________________
INDVAR....is the current dependent- or auxiliary- variable number.
___________________________________________________________________
INTFRC....name used to denote interphase friction coefficient in response of the command, CFIPS=GRND.
___________________________________________________________________
INTMDT....name used to denote interphase mass-transfer rate in response of the command, CMDOT=GRND.
___________________________________________________________________
ISPH1....name used to denote specific heat capacity at constant pressure of the first phase in response of the command, CP1=GRND.
___________________________________________________________________
ISPH2....name used to denote specific heat capacity at constant pressure of the second phase in response of the command, CP2=GRND.
___________________________________________________________________
ISTEP....is the time-step number.
___________________________________________________________________
ISWEEP....is the current sweep number.
___________________________________________________________________
IX....ranges from 1 to NX, denoting cell location in X-direction of PHOENICS.
___________________________________________________________________
IXF....is the west extent of the current patch within the slab.
___________________________________________________________________
IXL....is the east extent of the current patch within the slab.
___________________________________________________________________
IY....ranges from 1 to NY, denoting grid-point location in y-direction of PHOENICS, but not necessarily in cartesian-y direction for BFC=T. In the latter IY=J-1 (see BODY-F for indicial nomenclature in use in body-fitted coordinates).
___________________________________________________________________
IYF....is the south extent of the current patch within the slab.
___________________________________________________________________
IYL....is the north extent of the current patch within the slab.
___________________________________________________________________
IZ....ranges from 1 to NZ, denoting grid-point location in z-direction of PHOENICS, but not necessarily in cartesian-z direction for BFC=T. In the later IZ=K-1 (see BODY-F for indicial nomenclature in use in body-fitted coordinates).
___________________________________________________________________
IZSTEP....is the current z-slab.
___________________________________________________________________
LAMPR(PHI)....name used to denote the of values of the PRANDTL number in response of command, PRNDTL(PHI)=GRND. If PRNDTL(phi) = -GRND this name is used instead to set the values for diffusivities.
___________________________________________________________________
LD12....name used to denote the of values of the virtual mass in response of command, CVM=GRND.
___________________________________________________________________
LEN1....name used to denote the values of the length scale of phase 1 in response of command, EL1=GRND.
___________________________________________________________________
LEN2....name used to denote the values of the length scale of phase 2 in response of command, EL2=GRND.
___________________________________________________________________
LOW(PHI)....name used to denote the value of PHI on the low side of the cell in question.
___________________________________________________________________
MASS1....name used to denote the values, pertaining to the mass of phase-1 in each cell (i.e the product of phase-1 volume fraction, phase-1 density, and the volume of the cell). If the flow is single phase (ONEPHS=T) then MASS1 refers to the mass of fluid in the cells.
___________________________________________________________________
MASS2....name used to denote the values, pertaining to the mass of phase-2 in each cell (i.e the product of phase-2 volume fraction, phase-2 density, and the volume of the cell). If the flow is single phase (ONEPHS=T) then MASS2 has no significance.
___________________________________________________________________
MXYZ?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 19, Section 2 of GROUND to set the cartesian coordinates of cell corners for BFC grids.
___________________________________________________________________
NORTH(PHI)....name used to denote the value of PHI on the north side of the cell in question.
___________________________________________________________________
NZSTEP....is the number of z-slabs into which the domain is sub-divided.
___________________________________________________________________
OLD(PHI)....name used to denote the value of PHI appropriate to the previous instant of time.
___________________________________________________________________
P1....standard name used to denote first-phase pressure. P1 is also used to specify the first-phase mass-flow.
___________________________________________________________________
P2....standard name used to denote second-phase mass-flow.
___________________________________________________________________
PHINT(PHI) .... is the interface value of the variable indicated.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
PRNDTL(PHI) .... is the laminar Prandtl number of the variable indicated.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab. <> ___________________________________________________________________
PRPT?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 9 or 10 of GROUND to set properties of the medium ( media) including inter-phase-transfer processes.
____________________________________________________________________
R1....standard name used to denote the first-phase volume fraction.
___________________________________________________________________
R2....standard name used to denote the second-phase volume fraction.
___________________________________________________________________
RESREF(PHI)....name used to denote reference value of residual for the variable indicated, and which is used to set the specific expressions.
___________________________________________________________________
RHO1 .... is the density of the first phase.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
RHO2 .... is the density of the second phase.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
RS....standard name used to denote the second-phase shadow volume fraction, i.e. that which would be present in the absence of inter-phase-mass-transfer.
___________________________________________________________________
RG2D....name used to denote the array of values of distances from the axis of symmetry to the cell centres. RG2D is only of significance in cylindrical-polar coordinates, ie. when CARTES=F and BFC=F.
___________________________________________________________________
RV2D....name used to denote the array of values of distances from the axis of symmetry to the north wall of the continuity cells, at which the v velocities are stored. RV2D is only of significance in cylindrical-polar coordinates, ie. when CARTES=F and BFC=F.
___________________________________________________________________
SC01??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 1 of GROUND Group 19. This section is called at the start of each time step.
____________________________________________________________________
SC02??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 2 of GROUND Group 19. This section is called at the start of each sweep. ____________________________________________________________________
SC03??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 3 of GROUND Group 19. This section is called at the start of each iz slab.
____________________________________________________________________
SC04??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 4 of GROUND Group 19. This section is called at the start of each iteration.
____________________________________________________________________
SC05??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 5 of GROUND Group 19. This section is called at the finish of iteration.
____________________________________________________________________
SC06??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 6 of GROUND Group 19. This section is called at the finish of each iz slab.
____________________________________________________________________
SC07??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 7 of GROUND Group 19. This section is called at the finish of each sweep.
____________________________________________________________________
SC08??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 8 of GROUND Group 19. This section is called at the finish of each time step.
____________________________________________________________________
SC09??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 9 of GROUND Group 19. This section is called at the start of solution sequence for a variable.
____________________________________________________________________
SC10??....statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Section 10 of GROUND Group 19. This section is called at the finish of solution sequence for a variable.
____________________________________________________________________
SCTS?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 2 of GROUND to set the time step, DT.
____________________________________________________________________
SCUF?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 8, section 1, of GROUND to set the formulae for the values to add to the field of U1.
____________________________________________________________________ SCVF?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 8, section 3, of GROUND to set the formulae for the values to add to the field of V1.
____________________________________________________________________
SCWF?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 8, section 5, of GROUND to set the formulae for the values to add to the field of W1.
____________________________________________________________________
SCUS?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 8, section 2, of GROUND to set the formulae for the values to add to the field of U2.
____________________________________________________________________
SCVS?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 8, section 4, of GROUND to set the formulae for the values to add to the field of V2.
____________________________________________________________________
SCWS?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 8, section 6, of GROUND to set the formulae for the values to add to the field of W2.
____________________________________________________________________
SCXS?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 3 of GROUND to set the variable XRAT.
____________________________________________________________________
SCYS?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 4 of GROUND to set the variable YRAT.
____________________________________________________________________
SCZS?? .... statement heading used to instruct PLANT that it must write its FORTRAN block of number ?? in Group 5 of GROUND to set the variable DZ.
____________________________________________________________________
SISBC...function used to introduce boundary conditions for the displacements at the solid fluid interface on non-BFC grids.
The syntax is
{SORC01} CO =SISBC(expression) and/or
{SORC01} VAL=SISBC(expression)
Notes:
=> Example 1.
The next three lines
PATCH(SS111NOR,NORTH,1,NX,1,NY,1,NZ,1,LSTEP)
{SORC01} CO =SISBC(FIXFLU)
{SORC01} VAL=SISBC(0.0/FIXFLU)
COVAL(SS111NOR,V1,GRND,GRND)
set zero-normal stress boundary conditions at the north faces of all cells adjacent to interface between fluid and solid with PRPS=111. (steel).
=> Example 2.
The constrains are introduced in similar manner, so that
PATCH(SS111NOR,NORTH,1,NX,1,NY,1,NZ,1,LSTEP)
{SORC01} CO =SISBC(FIXVAL)
{SORC01} VAL=SISBC(0.0)
COVAL(SS111NOR,V1,GRND,GRND)
would introduce the constrains at all north faces of the cells adjacent to interface between fluid and solid with PRPS=111.
The similar blocks are used for WEST-EAST and LOW-HIGH directions.
____________________________________________________________________
SORC?? .... statement heading used to instruct PLANT that it must
write its FORTRAN block of number ?? in Group 13
- Section 1 when VAR is CO and/or
- Section 12 when VAR is VAL
of GROUND to set the formulae for the linearized sources.
____________________________________________________________________
SOUTH(PHI)....name used to denote the value of PHI on the south side of the cell in question.
___________________________________________________________________
SPHERE...function used as part of PLANT statement.
The syntax is:
MARK=SPHERE(MRK,XPP,YPP,ZPP,RADIUS)
It sets the MARK values equal to MRK inside the surface of spherical object placed on grid.
The function has 5 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
XPP - X - coordinate of the centre;
YPP - Y - coordinate of the centre;
ZPP - Z - coordinate of the centre;
RADIUS- sphere radius;
___________________________________________________________________
SUM...function which plants the GROUND coding in above Groups of GROUND to calculate the single value or the number of single values as a result of execution of the summation over the whole domain ( or over the specified part of flow domain ) for the expression specified as an argument.
The syntax is:
VAR = SUM (expression),
where VAR stands for automatically declared real variable name.
The function is followed by the mean to dump the resulting value(s) in special file called GLOBCALC with the facility for labelling them by command TEXT.
=> Example:
{SC0601> R=sum(SQRT(U1**2+V1**2))
REGION(1,NX-1,1,NY-1,1,1)
Here the line marked as {SC0601> contains the value to be computed, R, and the mathematical expression to be summed over the extent of the flow domain specified by REGION command. For the particular case shown, R will be the sum of velocity magnitudes at XY plane.
____________________________________________________________________
TEMP1....name used to denote first phase temperature in response of the command, TMP1=GRND.
___________________________________________________________________
TEMP2....name used to denote second phase temperature in response of the command, TMP2=GRND.
___________________________________________________________________
TEXT .... command used to transmit up to 30 characters of text which will be printed in GLOBCALC file. It is used inconjunction with SUM function only.
The syntax is:
TEXT ( Character string )
Note: it can be used in conjunction with SUM function only.
=> Example:
{SC0601> R=sum(SQRT(U1**2+V1**2))
TEXT (Variable R)
REGION(1,NX-1,1,NY-1,1,1)
Here the line marked as {SC0601> contains the value to be computed, R, and the mathematical expression to be summed over the extent of the flow domain specified by REGION command. For the particular case shown, R will be the sum of velocity magnitudes at XY plane.
The globcalc file of working directory will contain the following lines:
Global calculations:
Variable R = 4.70132
____________________________________________________________________
TIM....is the current time.
___________________________________________________________________
TINY....a small real number, defaulted to 1.E-20 which is used in EARTH to guard against division by zero. This value may be too small for machines with short word length, and would normally be set to an appropriate value at the time of installation.
___________________________________________________________________
TLAST....multiplier of TFRAC.
It must be set to GRND as a part of block for a setting the formulae to calculate time-step size DT.
____________________________________________________________________
TMP1 .... is the temperature of the first phase.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
____________________________________________________________________
TMP2 .... is the temperature of the second phase.
It must be set to GRND as a part of block for a setting the formulae to calculate the filed values at each Z-slab.
___________________________________________________________________
U1....standard name used to denote the first-phase velocity component in the x-direction.
___________________________________________________________________
U2....standard name used to denote the second-phase velocity component in the x-direction.
___________________________________________________________________
U1AD .... extra velocity to be added to U1. It must be set to GRND as a part of block for a setting the formulae to calculate the values to add to the field of U1 at each Z-slab.
___________________________________________________________________
U2AD .... extra velocity to be added to U2. It must be set to GRND as a part of block for a setting the formulae to calculate the values to add to the field of U2 at each Z-slab.
___________________________________________________________________
V1....standard name used to denote the first-phase velocity component in the y-direction.
___________________________________________________________________
V2....standard name used to denote the second-phase velocity component in the y-direction.
___________________________________________________________________
V1AD .... extra velocity to be added to V1. It must be set to GRND as a part of block for a setting the formulae to calculate the values to add to the field of V1 at each Z-slab.
___________________________________________________________________
V2AD .... extra velocity to be added to V2. It must be set to GRND as a part of block for a setting the formulae to calculate the values to add to the field of V2 at each Z-slab.
___________________________________________________________________
VAL....name which refers to the 'value' array, and which is used to set the values of linearised source expressions.
___________________________________________________________________
VARMAX(PHI) .... name used to denote the maximum value allowed to variable indicated, and which is used to set the specific relationship. If VARMAX(PHI) is less than -1.e-10, it will be treated as the maximum absolute value of the increment of the value at any updating stage.
___________________________________________________________________
VARMIN(PHI) .... name used to denote the minimum value allowed to variable indicated, and which is used to set the specific relationship. If VARMIN(PHI) is less than -1.e-10, it will be assumed that the absolute change made to the variable at all updating stages is limited to VARMAX.
___________________________________________________________________
VELAD....name used to denote extra addition to the current slab store of velocities, at the point in the computation at which the convection fluxes are assembled.
___________________________________________________________________
VISL....name used to denote the values of laminar kinematic viscosity of phase 1 in response of command, ENUL=GRND.
___________________________________________________________________
VIST....name used to denote the values of the turbulent kinematic viscosity of phase 1, in response of command, ENUT=GRND.
___________________________________________________________________
VOL....name used to denote an array containing the 'free' cell volumes available for fluid after blockages are deducted.
___________________________________________________________________
W1....standard name used to denote the first-phase velocity component in the z-direction.
___________________________________________________________________
W2....standard name used to denote the second-phase velocity component in the z-direction.
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W1AD .... extra velocity to be added to W1. It must be set to GRND as a part of block for a setting the formulae to calculate the values to add to the field of W1 at each Z-slab.
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W2AD .... extra velocity to be added to W2. It must be set to GRND as a part of block for a setting the formulae to calculate the values to add to the field of W2 at each Z-slab.
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WALDIS....name used to denote the distance from the wall to the first internal node. It is used in connection with the wall functions for turbulence models.
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WEST(PHI)....name used to denote the value of PHI on the west side of the cell in question.
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WGRDNZ....name used to denote the values of the w-velocity of the grid at the high face of each z- slab when the moving grid option is active.
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XC....is the symbol used for body-fitted coordinate grids to represent the cartesian coordinate x of the low-south-west corner of the continuity cell I, J, K.
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XCO....is the symbol used for body-fitted coordinate grids to represent the "old" cartesian coordinate x of the low-south-west corner of the continuity cell I, J, K.
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XG2D....name used to denote the array of values of: either (for CARTES=T or BFC=T) distances of the centres of the continuity cells from the x=0.0 plane in a Cartesian coordinate system, or (for CARTES=F and BFC=F) angular coordinates of the centres of the continuity cells in a cylindrical-polar system.
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XRAT....is the name used to denote the multiplier of the previous XULAST which gives the current XULAST in response of the command, AZXU = GRND.
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XU2D....name used to denote the values, as for XG2D except that the east faces of continuity cells are involved, not cell centres. Unlike XG2D, XU2D has no significance when BFC=T.
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XYBOX...function used as part of PLANT statement.
The syntax is:
MARK=XYBOX(MRK,XPP,YPP,XSIZE,YSIZE,ANG,ROTANG)
It sets the MARK values equal to MRK inside the surface of rectangular object placed on XY plane.
The function has 6 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
XPP - X - coordinate of south low corner of rectangle;
YPP - Y - coordinate of south low corner of rectangle;
XSIZE - object size in X-direction;
YSIZE - object size in Y-direction;
ANG - angle of counter clockwise rotation of object local
coordinate system about Z-axis , rad.
ROTANG- angle of shifting reference cartesian frame in the
X-direction ( significant for CARTES=F), rad.
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XYCIRC...function used as part of PLANT statement.
The syntax is:
MARK=XYCIRC(MRK,XPP,YPP,RADIUS)
It sets the MARK values equal to MRK inside the surface of circle object placed on XY plane.
The function has 4 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
XPP - X - coordinate of the centre;
YPP - Y - coordinate of the centre;
RADIUS- circle radius;
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XYELLP...function used as part of PLANT statement.
The syntax is:
MARK=XYELLP(MRK,XPP,YPP,AX1,AX2,ANG,ROTANG)
It sets the MARK values equal to MRK inside the surface of ellipse object placed on XY plane.
The function has 7 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
XPP - X - coordinate of the centre;
YPP - Y - coordinate of the centre;
AX1 - half axis size in X-direction;
AX2 - half axis size in Y-direction;
ANG - angle of counter clockwise rotation of object local
coordinate system about Z-axis , rad.
ROTANG- angle of shifting reference cartesian frame in the
X-direction ( significant for CARTES=F), rad.
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XYWEDG...function used as part of PLANT statement.
The syntax is:
MARK=XYWEDG(MRK,XPP,YPP,XSIZE,YSIZE,ANG,ROTANG)
It sets the MARK values equal to MRK inside the surface of right angle wedge object placed on XY plane.
The function has 7 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
XPP - X - coordinate of right angle vertice;
YPP - Y - coordinate of right angle vertice;
XSIZE - wedge size in X-direction;
YSIZE - wedge size in Y-direction;
ANG - angle of counter clockwise rotation of object local
coordinate system about Z-axis , rad.
ROTANG- angle of shifting reference cartesian frame in the
X-direction ( significant for CARTES=F), rad.
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YC....is the symbol used for body-fitted coordinate grids to represent the cartesian y-coordinate of the low-south-west corner for the continuity cells I, J, K.
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YCO....is the symbol used for body-fitted coordinate grids to represent the "old" cartesian y-coordinate of the low-south-west corner of the continuity cell I, J, K.
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YG2D....name used to denote the values of the distances of the centres of the continuity cells from the y=0.0 plane (for CARTES=T or BFC=T) or cylinder (for CARTES=F and BFC=F).
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YRAT....is the name used to denote the multiplier of the previous YVLAST which gives the current YVLAST in response of the command, AZYV = GRND.
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YV2D....name used to denote the values, as for YG2D, except that the north faces of cells are involved, not cell centres. Unlike YG2D, YV2D has no significance when BFC=T.
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YZBOX...function used as part of PLANT statement.
The syntax is:
MARK=YZBOX(MRK,YPP,ZPP,YSIZE,ZSIZE,ANG,ROTANG)
It sets the MARK values equal to MRK inside the surface of rectangular object placed on YZ plane.
The function has 6 arguments, namely (in order):
MRK - MARK value which is to be associated with the object;
YPP - Y - coordinate of south low corner of rectangle;
ZPP - Z - coordinate of south low corner of rectangle;
YSIZE - object size in Y-direction;
ZSIZE - object size in Z-direction;
ANG - angle of counter clockwise rotation of object local
coordinate system about X-axis , rad.
ROTANG- angle of shifting reference cartesian frame in the
X-direction ( significant for CARTES=F), rad.
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ZC....is the symbol used for body-fitted coordinate grids to represent the cartesian z-coordinate of the low-south-west corner for the continuity cell I, J, K.
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ZCO....is the symbol used for body-fitted coordinate grids to represent the "old" cartesian z-coordinate of the low-south-west corner of the continuity cell I, J, K.
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ZGNZ....name used to denote the values for the distances of the centres of the continuity cells from the z=0.0 plane.
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ZW....is the z coordinate of the high face of the current slab.
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ZWNZ...name used to denote the values for distances of the HIGH faces of the continuity cells from the z=0.0 plane.
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