*HEADING : TWO INFINITELY LONG DIRECTLY OPPOSED PARRALLEL PLATES SAME WIDTH TWO ELEMENTS TOTAL *NODE,NSET=BASE1 1,0.,0. 2,5.,0. 4,5.,5. 3,0.,5. *NCOPY,OLDSET=BASE1,CHANGENUMBER=4,SHIFT 0.,15.,0. *NSET,NSET=BASE2 7,8 *ELEMENT,TYPE=DC2D4,ELSET=EALL 1,1,2,4,3 2,5,6,8,7 *SOLID SECTION,ELSET=EALL,MATERIAL=ALU *MATERIAL,NAME=ALU *CONDUCTIVITY 237., *DENSITY 2702., *SPECIFIC HEAT 903., *surface,NAME=SURF1,PROPERTY=PROP1 1,S3 2,S1 *CAVITY DEFINITION,NAME=CAV1,AMB=300 SURF1, *SURFACE PROPERTY,NAME=PROP1 *EMISSIVITY 0.76, *PHYSICAL CONSTANTS,STEFANB=5.67E-08,ABSOLUTE ZERO=0.0 ** *RESTART,WRITE,FREQ=5 *STEP,INC=20 RADIATION VIEWFACTOR CALCULATIONS 1 *HEAT TRANSFER,STEADY STATE 1.,1. *RADIATION VIEWFACTOR,REFLECTION=YES,VTOL=.001 *BOUNDARY BASE1,11,,1000. BASE2,11,,300. *NODE PRINT NT, RFLE, *NODE FILE NT, *OUTPUT,FIELD *NODE OUTPUT NT, *RADIATION PRINT RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP *RADIATION FILE RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP *OUTPUT,FIELD *RADIATION OUTPUT RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP *END STEP *STEP,INC=20 RADIATION VIEWFACTOR CALCULATIONS 2 *HEAT TRANSFER,STEADY STATE 1.,1. *RADIATION VIEWFACTOR,REFLECTION=YES,VTOL=.001 *BOUNDARY, OP=NEW 1,11,,1000 2,11,,1000 BASE2,11,,300. *NODE PRINT NT, RFLE, *NODE FILE NT, *OUTPUT,FIELD *NODE OUTPUT NT, *RADIATION PRINT RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP *RADIATION FILE RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP *OUTPUT,FIELD *RADIATION OUTPUT RADFL,RADFLA,RADTL,RADTLA,VFTOT,FTEMP *END STEP