*HEADING : IDENTICAL, PARALLEL DIRECTLY OPPOSED RECTANGES TWO ELEMENTS TOTAL *NODE,NSET=BASE1 1,0.,0.,0. 2,5.,0.,0. 3,5.,8.,0. 4,0.,8.,0. *NCOPY,CHANGE NUMBER=10,OLD SET=BASE1,SHIFT 0.,0.,15. *NSET,NSET=BASE2 11,12,13,14 *ELEMENT,TYPE=DS4,ELSET=EALL 1,1,2,3,4 *ELEMENT,TYPE=DS4,ELSET=EALL 2,11,12,13,14 *SHELL SECTION,ELSET=EALL,MATERIAL=ALU 0.1, *MATERIAL,NAME=ALU *CONDUCTIVITY 237., *DENSITY 2702., *SPECIFIC HEAT 903., *surface,NAME=SURF1,PROPERTY=PROP1 1,SPOS 2,SNEG *CAVITY DEFINITION,NAME=CAV1,AMB=100 SURF1, *SURFACE PROPERTY,NAME=PROP1 *EMISSIVITY, DEPENDENCIES=1 0.76, ,1.0 1.00, ,2.0 *PHYSICAL CONSTANTS,STEFANB=5.67E-08,ABSOLUTE ZERO=0. ** *NSET, NSET=ALLN BASE1, BASE2 *INITIAL CONDITIONS,TYPE=FIELD,VARIABLE=1 ALLN,1.0 *RESTART,WRITE,FREQ=5 *STEP,INC=20 HEAT TRANSTER TEST 1.0 *HEAT TRANSFER,STEADY STATE 1.,1. *RADIATION VIEWFACTOR,REFLECTION=NO *BOUNDARY BASE1,11,11,10. BASE2,15,15,1000. *NODE PRINT NT,COORD *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