#$r002 PHOTON USE AUTOPLOT file PHI 5 cl msg Temperature profile msg Analytical solution shows that TSL=842K (distance 0.5) da 1 tem1 col3 1 ENDUSE * GROUP 1. Run identifiers and other preliminaries. TEXT(1-D THIN PLATE : R118 TITLE DISPLAY The test case considers internal black-body radiative heat transfer between the various surfaces, and conductive heat transfer through the air and a thin plate located mid-way between the two bounding surfaces of the solution domain. ___________________________________________________ /| |/ |/ /|<---TL=1000K TSL---->|/<---TSR TR=293K|/ /| |/ |/ /| AIR |/ AIR |/ /| PRPS=0 |/ PRPS=0 |/ /| |/ |/ /|<---Radiative zone 1 |<----Radiative zone 2 |/ /| Radiative zone 3--->|/ Radiative zone 4---> |/ |________________________|__________________________| ----------> Y length of domain = 1.0 m, height of domain = 1.0m The PHOENICS solution can be compared with the analytical solution which shows that TSL=842K=TSR, and the net radiative flux at zone 3 =28.kW/m2 ENDDIS ************************************************************ * User declared Real variables * NYG - the Y gas cell at the solid/fluid interface used in Group 12 * NYG is set in Group 4 * GCOND - the laminar thermal conductivity of the plate (W/m/K) * GPLTH - the thickness of the plate (m) INTEGER(NYG) REAL(GCOND,GPLTH);GCOND=220.;GPLTH=0.005 ************************************************************ * GROUP 4. y-direction grid specification. NREGY=2;REGEXT(Y,5.0000E-01) * Region 1 for fluid IREGY=1;GRDPWR(Y,5,5.0000E-01,-2.0) NYG=5 * Region 2 for Solid IREGY=2;GRDPWR(Y,5,5.0000E-01,2.0) ************************************************************ * GROUP 7. Variables (including porosities) named, * stored & solved. SOLVE(TEM1);SOLUTN(TEM1,Y,Y,Y,N,N,Y) STORE(PRPS) ************************************************************ * GROUP 9. Properties of the medium (or media). * Fluid/medium is Air-ideal_gas * Reference pressure (N/m^2) SETPRPS(1,0) PRESS0=1.0000E+05 ************************************************************ * GROUP 11. Initialization of fields of variables, * porosities, etc. * Thin plate CONPOR(PLT,0.0,NORTH,#1,#1,-NYG,-NYG,#1,#1) FIINIT(TEM1)=800.00 ************************************************************ * GROUP 13. Boundary conditions and special sources * WALL boundary condition, name TFIXL to set the fixed TL for the conductive boundary condition PATCH(TFIXL,SWALL,#1,#1,#1,#1,#1,#1,#1,#NREGT) COVAL(TFIXL,TEM1,1.0,1000) * WALL boundary condition, name TFIXR to set the fixed TR for the conductive boundary condition PATCH(TFIXR,NWALL,#1,#1,#2,#2,#1,#1,#1,#NREGT) COVAL(TFIXR,TEM1,1.0,293) * Radiative zones have PATCH name of the form RI###, ### are digits indicating the zone number. RI indicates that the PATCH is for an internal radiating zone. * Radiation zone 1. This zone is located at the left wall and has a fixed temperature PATCH(@RI001,SOUTH,#1,#1,#1,#1,#1,#1,#1,#NREGT) COVAL(@RI001,TEM1,0.0,1000.) * Radiation zone 2 and 3 are surfaces of the plate. The surface temperature of these zones are calculated in GXS2SR The COefficient is GRND3 and the VALue is k/d for the plate PATCH(@RI002,SOUTH,#1,#1,NYG+1,NYG+1,#1,#1,#1,#nregt) COVAL(@RI002,TEM1,GRND3,GCOND/GPLTH) PATCH(@RI003,NORTH,#1,#1,NYG,NYG,#1,#1,#1,#1) COVAL(@RI003,TEM1,GRND3,GCOND/GPLTH) * Fixed temperature radiative thermal zone 4 PATCH(@RI004,NORTH,#1,#1,#2,#2,#1,#1,#1,#1) COVAL(@RI004,TEM1,0.0,293.) ************************************************************ * GROUP 15. Termination criteria for sweeps and * outer iterations. LSWEEP=2000;TSTSWP=-1 ************************************************************ * GROUP 16. Termination criteria for inner iterations. S2SR=T ************************************************************ * GROUP 19. Data communicated by SATELLITE to GROUND IYMON=NY/2 ************************************************************ * GROUP 24. Preparation for continuation runs. LIBREF = 118 spedat(set,cvd,radcvd,l,t) STOP