TR211: GENTRA User Guide Appendix C

Appendix C; List of GENTRA FORTRAN variables

The main GENTRA variables are listed in this Appendix. These variables are available through the COMMON blocks in the file TRACMN, a copy of which can be found in the d_gentra directory.

In the tables below, the numbers in square brackets indicate the built-in default value of the variable.

Additionally, all the GENTRA-PIL variables, listed in Appendix B, are also available in FORTRAN, and are automatically assigned the value specified for them in the Q1 file.

(Variables in italics should not be modified by the user.)

C.1 Variables for continuous phase

Name	Type	Meaning
CPVAPO	REAL	Cp of vapour
DENGAS	REAL	Density of the continuous phase
GASPRE	REAL	Pressure of the continuous phase
GCONGS	REAL	Vapour mass fraction
GCPGAS	REAL	Cp of cont. phase-vapour mixture
GEDLIF	REAL	Eddy life time
GEPSIL	REAL	Local dissipation rate of turbulence kinetic energy
GKINET	REAL	Local turbulence kinetic energy
GLENGT	REAL	Turbulence length scale
GSENUL	REAL	Laminar viscosity of the continuous phase
GVFLOW	REAL	Magnitude of velocity of cont. phase
HEAT	INT.	Index of energy source
PRINDX	INT.	Property index Threshold for solid
PROPS	INT.	Index of properties for cont. phase
RESMET	BOOL	Cal. of cont. phase has met the residual criterion
REST	INT.	Index of particle residence time
TEMGAS	REAL	Temperature of the continuous phase
THRMKC	REAL	Thermal conduct. of the cont. phase without vapour
TSOLVE	BOOL	Switch for solving particle energy equation
UCDASH	REAL	Vel. fluctuation of the cont. phase in Cart. system
UCGASN	REAL	Velocity of the continuous phase in Cartesian system
UPGASN	REAL	Velocity of the continuous phase in polar system
VAPO	INT.	Index of vapour concentration
VCDASH	REAL	Vel. fluctuation of the cont. phase in Cart. system
VCGASN	REAL	Velocity of the continuous phase in Cartesian system
VPGASN	REAL	Velocity of the continuous phase in polar system
WCDASH	REAL	Vel. fluctuation of the cont. phase in Cart. system
WCGASN	REAL	Velocity of the continuous phase in Cartesian system

C.2 Variables for particle phase

Name	Type	Meaning
DIAMAX	REAL	Maximum particle diameter
DIAMIN	REAL	Minimum particle diameter
DIPARN	REAL	New particle diameter
DIPARO	REAL	Old particle diameter
EPS	REAL	Restitution coefficient
GCPPAR	REAL	Cp of particle
GDT	REAL	Lagrangian time step size
GEDTIM	REAL	Traverse time for particle through eddy
GHCSAA	REAL	Coefficient in particle energy equation
GHCSBB	REAL	Coefficient in particle energy equation
GHCSCC	REAL	Source in particle energy equation
GMCSAA	REAL	Coefficient in particle mass equation
GMCSBB	REAL	Coefficient in particle mass equation
GMCSCC	REAL	Source in particle mass equation
GMINDX	REAL	Index of solid fraction formula
GNUSLT	REAL	Nusselt number
GPRYVS	REAL	Vapour mass fraction under saturation condition
GTIMED	REAL	Total particle-eddy interaction time
GTLIQD	REAL	Liquidus temperature
GTSOLD	REAL	Solidus temperature
GVCSAA	REAL	Coefficient in particle momentum equation
GVCSBB	REAL	Coefficient in particle momentum equation
GVCSCX	REAL	Source in particle momentum equation
GVCSCY	REAL	Source in particle momentum equation
GVCSCZ	REAL	Source in particle momentum equation
GVPART	REAL	Magnitude of particle velocity
HFGLIQ	REAL	Latent heat of evaporation
IP	INT.	ID of the current particle
IUPARN	INT.	New index of particle containing momentum cell
IUPARO	INT.	Old index of particle containing momentum cell
IVPARN	INT.	New index of particle containing momentum cell
IVPARO	INT.	Old index of particle containing momentum cell
IWPARN	INT.	New index of particle containing momentum cell
IWPARO	INT.	Old index of particle containing momentum cell
IXPARN	INT.	New index of particle containing cell
IXPARO	INT.	Old index of particle containing cell
IYPARN	INT.	New index of particle containing cell
IYPARO	INT.	Old index of particle containing cell
IZPARN	INT.	New index of particle containing cell
IZPARO	INT.	Old index of particle containing cell
KILPAR	BOOL	Current particle is killed
LABPAR	INT.	Particle ID (internal use only)
LASTF	INT.	Last F-array address used
LSTLAB	INT.	ID of last particle
MASS	INT.	Index of mass source
MOMX	INT.	Index of X-momentum source
MOMY	INT.	Index of Y-momentum source
MOMZ	INT.	Index of Z-momentum source
NPORTS	INT.	Number of parcels introduced in the current Eulerian time step
NTRACK	INT.	Total number of parcels in the domain
PARNUM	REAL	Number of particles in the current parcel
PMASSN	REAL	New parcel mass
PMASSO	REAL	Old parcel mass
PRVLIN	REAL	Internal variable for particle init. condition
RELVEC	REAL	Magnitude of relative velocity (slip velocity)
REYNOL	REAL	Particle Reynolds number
ROLIQD	REAL	Liquid density of particle
ROPARN	REAL	New particle density
ROPARO	REAL	Old particle density
ROSOLD	REAL	Solid density of particle
ROTCOO	BOOL	Simulation is in rotating co-ordinate system
SATPRS	REAL	Vapour saturation pressure
SOLFR0	REAL	Initial particle solid-fraction
SOLFRN	REAL	New particle solid fraction
SOLFRO	REAL	Old particle solid fraction
SOLIDF	BOOL	Switch for solid./melt.
SOLLAT	REAL	Latent heat of solidification
SPALD	REAL	Spalding number
STARAT	REAL	Velocity criterion for particle stagnation
THRMKV	REAL	Thermal conduct. of vapour
TPARTN	REAL	New particle temperature
TPARTO	REAL	Old particle temperature
TUROFF	BOOL	Turning off turb. stochastic model (Internal use)
UCNDRG	REAL	Internal variable for particle momentum calculation
UCPARN	REAL	New particle velocity in Cartesian system
UCPARO	REAL	Old particle velocity in Cartesian system
UPPARN	REAL	New particle velocity in polar system
UPPARO	REAL	Old particle velocity in polar system
VAPSOL	BOOL	Flag for solving vapour concentration
VCNDRG	REAL	Internal variable for particle momentum calculation
VCPARN	REAL	New particle velocity in Cartesian system
VCPARO	REAL	Old particle velocity in Cartesian system
VPPARN	REAL	New particle velocity in polar system
VPPARO	REAL	Old particle velocity in polar system
WCNDRG	REAL	Internal variable for particle momentum calculation
WCPARN	REAL	New particle velocity in Cartesian system
WCPARO	REAL	Old particle velocity in Cartesian system
WPGASN	REAL	Velocity of the continuous phase in polar system
WPPARN	REAL	New particle velocity in polar system
WPPARO	REAL	Old particle velocity in polar system
XCPARN	REAL	New particle position in Cartesian system
XCPARO	REAL	Old particle position in Cartesian system
XPPARN	REAL	New particle position in polar system
XPPARO	REAL	Old particle position in polar system
YCPARN	REAL	New particle position in Cartesian system
YCPARO	REAL	Old particle position in Cartesian system
YPPARN	REAL	New particle position in polar system
YPPARO	REAL	Old particle position in polar system
ZCPARN	REAL	New particle position in Cartesian system
ZCPARO	REAL	Old particle position in Cartesian system
ZPPARN	REAL	New particle position in polar system
ZPPARO	REAL	Old particle position in polar system

C.3 Printout variables

Name	Type	Meaning
LUFAT	INT.	Logical unit for GENTRA fatal error
LUHIS	INT.	Logical unit for GENTRA global history file
LUPRO	INT.	Logical unit for screen output
LUTRA	INT.	Logical unit for PHOTON use file
LUWAR	INT.	Logical unit for GENTRA warning message
TRCOLO	INT.	Colour index of trajectory
TRDASH	INT.	line style index of trajectory

C.4 Auxiliary variables

Name	Type	Meaning
ANODAL	REAL	Internal variable
AXISYM	BOOL	Axi-symmetric case
AXIXRY	BOOL	Internal variable
AXIXRZ	BOOL	Internal variable
AXIYRX	BOOL	Internal variable
AXIYRZ	BOOL	Internal variable
AXIZRX	BOOL	Internal variable
AXIZRY	BOOL	Internal variable
BNODAL	REAL	Internal variable
CCHLIM	REAL	Internal variable
CCLLIM	REAL	Internal variable
CCNMAX	REAL	Internal variable
CCNMIN	REAL	Internal variable
CELMIN	REAL	Internal variable
CENTRA	REAL	Internal variable
CHARVL	REAL	Characteristic velocity
CNODAL	REAL	Internal variable
DBGLEV	INT.	For internal debugging only
DBGPAR	INT.	For internal debugging only
DBGSWP	INT.	For internal debugging only
DIHLIM	REAL	Internal variable
DILLIM	REAL	Internal variable
DISAX	REAL	Internal variable
DISAY	REAL	Internal variable
DISAZ	REAL	Internal variable
DISBX	REAL	Internal variable
DISBY	REAL	Internal variable
DISBZ	REAL	Internal variable
DNODAL	REAL	Internal variable
ENODAL	REAL	Internal variable
FACEVS	REAL	Internal variable
FNODAL	REAL	Internal variable
FULCYC	BOOL	The domain covers full cycle
FVISIT	BOOL	Internal variable
GBUOYA	BOOL	PIL variable
GCARTE	BOOL	Cartesian system
GCPCON	REAL	PIL variable
GCPLIQ	REAL	PIL variable
GCPSOL	REAL	PIL variable
GCPVAP	REAL	PIL variable
GDRAG	REAL	PIL variable
GDTMAX	REAL	PIL variable
GDTMIN	REAL	Minimum time step size allowed
GDTRCT	REAL	PIL variable
GFASWP	INT.	First actual GENTRA sweep
GGRAX	REAL	PIL variable
GGRAY	REAL	PIL variable
GGRAZ	REAL	PIL variable
GH1STC	CHAR	PIL variable
GHFILE	CHAR	PIL variable
GHLIQD	REAL	PIL variable
GINFIL	CHAR	PIL variable
GKONC	REAL	PIL variable
GKONV	REAL	PIL variable
GLAGTS	INT.	PIL variable
GLATVP	REAL	PIL variable
GLHEAS	REAL	PIL variable
GLIQST	REAL	PIL variable
GMWCON	REAL	PIL variable
GMWVAP	REAL	PIL variable
GNODAL	REAL	Internal variable
GNUSS	REAL	PIL variable
GOUTFR	INT.	PIL variable
GPOLAR	BOOL	Polar system
GPOROS	REAL	PIL variable
GPTYPE	INT.	PIL variable
GRESTI	INT.	PIL variable
GRSTRT	CHAR	PIL variable GRSFIL
GRTFRC	REAL	PIL variable
GSOLIN	REAL	PIL variable
GSOLST	REAL	PIL variable
GSTEMX	INT.	PIL variable
GSTOCH	BOOL	PIL variable
GSTPRE	REAL	PIL variable
GSURPR	BOOL	PIL variable
GSWEP1	INT.	PIL variable
GSWEPF	INT.	PIL variable
GSWOUT	INT.	PIL variable
GT1STC	CHAR	PIL variable
GTIMMX	REAL	PIL variable
GVAPST	REAL	PIL variable
GWALLC	INT.	PIL variable
GWREST	REAL	PIL variable
GXCYCL	BOOL	Cyclic boundary condition
HNODAL	REAL	Internal variable
IBODRY	INT.	Internal variable
IBONCF	INT.	Internal variable
IGAXI	INT.	Internal variable
ILOC0	INT.	Internal variable
INTLEV	INT.	For internal debugging only
IPRDIA	INT.	Internal variable
IPRLAB	INT.	Internal variable
IPRLIQ	INT.	Internal variable
IPRNUM	INT.	Internal variable
IPRSOF	INT.	Internal variable
IPRSOL	INT.	Internal variable
IPRSTN	INT.	Internal variable
IPRT0	INT.	Internal variable
IPRTEM	INT.	Internal variable
IPRVEL	INT.	Internal variable
ITEMIN	INT.	Internal variable
IVARBL	INT.	Internal variable
JCOUNT	INT.	Internal variable
JGAXI	INT.	Internal variable
JTEM1	INT.	Internal variable
JUCRT	INT.	Internal variable
JVCRT	INT.	Internal variable
JWCRT	INT.	Internal variable
KGAXI	INT.	Internal variable
LSTSWP	BOOL	Flag for PHOENICS last sweep
LUEND	INT.	Internal variable
NFACE	INT.	Internal variable
NGWEND	INT.	PIL variable
NGWINT	INT.	PIL variable
NGWSTR	INT.	PIL variable
PI	REAL	3.1415926
POLTRC	BOOL	Tracking in polar system
SUBEDY	BOOL	Internal variable
TCHLIM	REAL	Internal variable
TCLLIM	REAL	Internal variable
TCNMAX	REAL	Internal variable
TCNMIN	REAL	Internal variable
TCONST	BOOL	Internal variable
TPHLIM	REAL	Internal variable
TPLLIM	REAL	Internal variable
TPRMAX	REAL	Internal variable
TPRMIN	REAL	Internal variable
UA	REAL	Internal variable
UB	REAL	Internal variable
VA	REAL	Internal variable
VB	REAL	Internal variable
VPHLIM	REAL	Internal variable
VPLLIM	REAL	Internal variable
VPRMAX	REAL	Internal variable
VPRMIN	REAL	Internal variable
WA	REAL	Internal variable
WB	REAL	Internal variable
XCFACE	REAL	Internal variable
XLASTM	REAL	Internal variable
YLASTM	REAL	Internal variable
ZLASTM	REAL	Internal variable

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