*HEADING
 : TWO DIMENSIONAL HEAT TRANSFER INTERFACE 
          GAP RADIATION 
          TIED CONTACT WITH ADJUST
*RESTART,WRITE
*PHYSICAL CONSTANTS,ABS=-460.,STEFANB=.1714E-8
*NODE
1,10.0,0.0
2,11.0,0.0
3,11.0,0.50
4,10.0, 0.50
5,10.0,0.55
6,11.0,0.55
7,11.0,1.0
8,10.0,1.
11,10.0,-.01
12,11.0,-.01
17,11.0,-1.0
18,10.0,-1.0
*NSET, NSET=SIDE3
7,8
*NSET,NSET=GAP1
11,12,17,18
*ELEMENT,TYPE=DC2D4,ELSET=MID
1, 1,2,3,4
*ELEMENT, TYPE=DC2D4,ELSET=TOP
2,5,6,7,8
*ELEMENT,TYPE=DC2D4,ELSET=BOT
3,18,17,12,11
*ELSET,ELSET=SOLID
1,2,3
*surface, NAME=SURF1
TOP,S1
*surface, NAME=SURF2
MID,S3
*surface, NAME=SURF3
MID,S1
*surface, NAME=SURF4
BOT,S3
*CONTACT PAIR, TIED, ADJUST=0.1, INTERACTION=TIED
SURF1,SURF2
*CONTACT PAIR,INTERACTION=GAP
SURF3,SURF4
*SURFACE INTERACTION,NAME=TIED
*SURFACE INTERACTION,NAME=GAP
*GAP RADIATION
.45167,.45167
1.,0.
1.,1.
** converted from old data: 5.E-10, 5.E-10
*SOLID SECTION,ELSET=SOLID,MATERIAL=SOLMAT
*MATERIAL,NAME=SOLMAT
*CONDUCTIVITY
1., 
*STEP
*HEAT TRANSFER, STEADY STATE
*NODE FILE
 NT,
 RFL,
*OUTPUT,FIELD
*NODE OUTPUT
NT,
RFL,
*EL PRINT,FREQ=0
*CONTROLS, PARAMETER=FIELD
5.e-4,
*NODE PRINT
 NT,
 RFL,
*BOUNDARY,OP=NEW
SIDE3,11,,100.
GAP1,11,,50.
*CONTACT PRINT
*CONTACT FILE
*OUTPUT,FIELD
*CONTACT OUTPUT,VARIABLE=PRESELECT
*END STEP