*HEADING
 : RECTANGLES HAVING COMMON EDGE WITH ARBITRARY ANGLE ONE INFINITELY LONG
 NINE ELEMENTS TOTAL
*NODE,NSET=BASE1
1,0.,0.,0.
2,0.,10.,0.
3,0.,10.,8.
4,0.,0.,8.
*NCOPY,OLD SET=BASE1,CHANGE NUMBER=90,SHIFT,NEW SET=RIGHT1
72.,0.,0.

*NFILL
BASE1,RIGHT1,9,10
*NODE,NSET=TOP
100,7.07108,0.,15.07108
101,7.07108,10.,15.07108
*NSET,NSET=TOP
3,4
*NCOPY,OLD SET=TOP,CHANGE NUMBER=200,SHIFT
-3.5355,0.,3.5355

*ELEMENT,TYPE=DC3D8,ELSET=EALL
2,1,11,12,2,4,14,13,3
1,4,100,101,3,204,300,301,203
*ELGEN,ELSET=EALL
2,9,10
*ELSET,ELSET=CAVT1,GENERATE
2,10
*SOLID SECTION,ELSET=EALL,MATERIAL=ALU
*MATERIAL,NAME=ALU
*CONDUCTIVITY
237., 
*DENSITY
2702., 
*SPECIFIC HEAT
903., 
*surface,NAME=SURF1,PROPERTY=PROP1
CAVT1,S2
1,S1
*CAVITY DEFINITION,NAME=CAV1,AMB=100
SURF1, 
*SURFACE PROPERTY,NAME=PROP1
*EMISSIVITY
0.76, 
*PHYSICAL CONSTANTS,STEFANB=5.67E-08,ABSOLUTE ZERO=0.0
**
*RESTART,WRITE,FREQ=10
*STEP,INC=20
 RADIATION VIEWFACTOR CALCULATIONS 
*HEAT TRANSFER,STEADY STATE
1.,1.
*RADIATION VIEWFACTOR,REFLECTION=YES,VTOL=.001
*BOUNDARY
BASE1,11,,1000.
TOP,11,,300.
*NODE PRINT
NT,COORD
*NODE FILE
NT, 
*RADIATION PRINT 
RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP
*RADIATION FILE
RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP
*END STEP