*HEADING
: *DSFLUX, *SFILM, AND *SRADIATION FOR HEAT TRANSFER ELEMENTS  [DS4]
*NODE,NSET=ALL
 1, 0.
 2, 7.
 3, 7., 7.
 4, 0., 7.
*ELEMENT,TYPE=DS4, ELSET=EALL
 1,1,2,3,4
*surface, NAME=TOP
 1,SPOS
*surface, NAME=BOT
 1,SNEG
*SHELL SECTION, MATERIAL=A1, ELSET=EALL
 .5,3
*PHYSICAL CONSTANTS, ABSOLUTE ZERO=-460., STEFAN BOLTZMANN=5.E-08
*MATERIAL, NAME=A1
*CONDUCTIVITY
 3.77E-5, 
*SPECIFIC HEAT
 .39, 
*DENSITY
 82.9, 
*STEP
*HEAT TRANSFER,STEADY STATE
*NODE PRINT
 NT,RFL
*OUTPUT,FIELD
*NODE OUTPUT
NT,RFL
*EL PRINT, TOTALS=YES
1,2,3
 IVOL,
 SVOL,
 EVOL,
*OUTPUT,FIELD
*ELEMENT OUTPUT
IVOL,
SVOL,
EVOL,
*DFLUX,OP=NEW
 1, BF, .3
*BOUNDARY
 ALL,11
*END STEP
*STEP
*HEAT TRANSFER, STEADY STATE
*SRADIATE, OP=NEW
 TOP, AVG, 75., 0.77e-6
*BOUNDARY,OP=NEW
 ALL, 11
*END STEP
*STEP
*HEAT TRANSFER, STEADY STATE
*BOUNDARY,OP=NEW
 ALL, 13
*DFLUX,OP=NEW
*DSFLUX,OP=NEW
 BOT, S, .3
*END STEP
*STEP
*HEAT TRANSFER, STEADY STATE
*BOUNDARY,OP=NEW
 ALL, 11
*DSFLUX,OP=NEW
 TOP, S, .3
*END STEP
*STEP
*HEAT TRANSFER,STEADY STATE
*DSFLUX, OP=NEW
*SFILM,OP=NEW
 BOT, F, 75., .103
*BOUNDARY,OP=NEW
 ALL, 13
*END STEP
*STEP
*HEAT TRANSFER,STEADY STATE
*SFILM,OP=NEW
 TOP, F, 75., .103
*BOUNDARY,OP=NEW
 ALL, 11
*END STEP
*STEP
*HEAT TRANSFER, STEADY STATE
*SFILM,OP=NEW
*SRADIATE, OP=NEW
 BOT, R, 75., 1.E-06
*BOUNDARY,OP=NEW
 ALL, 13
*END STEP
*STEP
*HEAT TRANSFER, STEADY STATE
*SRADIATE, OP=NEW
 TOP, R, 75., 1.E-06
*BOUNDARY,OP=NEW
 ALL, 11
*END STEP