#$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