*HEADING
INFINITELY LONG SQUARE TUBE, BLOCKING, DC3D8, 1 CYC SYMM (NC=4)
PLUS 1 PER SYMM (NR=10)
*PREPRINT
*PHYSICAL CONSTANTS, STEFAN=5.669E-8,ABSOLUTE ZERO=0.0
*NODE
*NGEN,NSET=LHS
*NGEN,NSET=RHS
*NFILL,NSET=ALLN
LHS,RHS,12
*NSET,NSET=OUTN,GEN
*ELEMENT,TYPE=DC3D8,ELSET=CONDEL
*ELGEN,ELSET=CONDEL
*ELSET,ELSET=OUTEL,GEN
*SOLID SECTION,ELSET=CONDEL,MATERIAL=ALUM
*MATERIAL,NAME=ALUM
*CONDUCTIVITY
204.,
*DENSITY
2707.,
*SPECIFIC HEAT
896.,
***  CAVITY DEFINITION
*ELSET,ELSET=ELHS,GEN
*ELSET,ELSET=EBOT,GEN
*surface,NAME=SLHS,PROPERTY=PSIDE
ELHS,S4
*surface,NAME=SBOT,PROPERTY=PTOBO
EBOT,S5
*surface,NAME=SBLOCK,PROPERTY=PBLOCK
106,S3
106,S6
*CAVITY DEFINITION,NAME=CAV3D,AMB=200.
SLHS,SBOT,SBLOCK
*SURFACE PROPERTY,NAME=PSIDE
*EMISSIVITY
*SURFACE PROPERTY,NAME=PTOBO
*EMISSIVITY
*SURFACE PROPERTY,NAME=PBLOCK
*EMISSIVITY
***
*INITIAL CONDITIONS,TYPE=TEMPERATURE
ALLN,300.
*RESTART,WRITE,FREQ=10
*STEP,INC=20
*HEAT TRANSFER,STEADY STATE
1.,1.
*BOUNDARY
127,11,,1000.
2127,11,,1000.
1,11,,400.
2001,11,,400.
*RADIATION VIEW,REFLECTION=NO,SYMM=CYCPER
*RADIATION SYMM,NAME=CYCPER
*CYCLIC,TYPE=AXIS,NC=4
*PERIODIC,TYPE=3D,NR=10
*NODE PRINT,NSET=OUTN
NT,
*NODE FILE,NSET=OUTN
NT,
*RADIATION PRINT
RADFL,VFTOT,FTEMP
*RADIATION FILE,ELSET=OUTEL
RADFL,VFTOT,FTEMP
*VIEWFACTOR OUTPUT,CAVITY=CAV3D
*END STEP