*HEADING
  3D FLUID ELEMENT - a spherical fluid filled cavity in a cube
**
*PART, name=FIL-1
**
*NODE
  1,    0.,      0.,      0.
  2,   10.,      0.,      0.
  3,    0.,     10.,      0.
  4,   10.,     10.,      0.
  5,    0.,      0.,     10.
  6,   10.,      0.,     10.
  7,    0.,     10.,     10.
  8,   10.,     10.,     10.
  9,    5.,      0.,      0.
 10,    0.,      5.,      0.
 11,    0.,      0.,      5.
 12,   3.535,    3.535,   0.
 13,    0.,      3.535,   3.535
 14,   3.535,    0.000,   3.535
 15,   2.888,    2.888,   2.888
**                        
**
*ELEMENT, TYPE=C3D8,  ELSET=SURROUND
**
  1,  4,   2,   6,   8,  12,   9,  14,  15
  2,  3,   4,   8,   7,  10,  12,  15,  13
  3,  8,   6,   5,   7,  15,  14,  11,  13
**
*Elset, elset=__PickedSurf1A_S2
  1,  2,  3
*Surface, type=ELEMENT, name=Surf-1
__PickedSurf1A_S2, S2
**
*NODE, NSET=REF-NODE-AA
 880,  0, 0., 0.
**
**=========================
**
*Fluid behavior, name=VENT-A
*Capacity, Type=POLYNOMIAL
 2.599900e+04,   4.350000e+01,  -1.480000e-02,   0.000000e+00,   0.000000e+00
**
*MOLECULAR WEIGHT
  0.01
*Fluid behavior, name=VENT-AA
*FLUID DENSITY
 1.060
*FLUID BULK MODULUS
 2176
*Fluid cavity, name=Fluid-A99, ref node=REF-NODE-AA, surface=Surf-1, behavior=VENT-A, ambient pressure=10

**
**
**
*SOLID SECTION, ELSET=SURROUND, MATERIAL=FIL
 1.,
*END PART
**
*assembly, name=assembly-1
*instance, name=FIL-1-1, part=FIL-1
**
*END INSTANCE
**
*NSET, NSET=BASE, INSTANCE=FIL-1-1,  internal          
  2,  3,  4,  9,  10,  12
**
*NSET, NSET=YSYMM, INSTANCE=FIL-1-1,  internal
   2, 5,  6,  9,  11, 14              
** 
*NSET, NSET=XSYMM, INSTANCE=FIL-1-1, internal
   3, 5,  7,   10,  11,  13                              
** 
*ELSET, ELSET=E1, internal, INSTANCE=FIL-1-1
  1, 2, 3     
**
*SURFACE, TYPE=ELEMENT, name=outside
  E1, S1
**
*NSET, NSET=REF-NODE-AA, internal, INSTANCE=FIL-1-1
  880,
*end assembly
**
*MATERIAL, NAME=FIL
*ELASTIC
  1.E3 , 0.25
*DENSITY
  1600.
**
**
*BOUNDARY
  XSYMM,   1, 1,  0.
  YSYMM,   2, 2,  0.
   BASE,   3, 3,  0.
**-----------------insert 2 -----------------------------------------
*Initial conditions, type=fluid pressure
Ref-node-AA, 10
*Physical constants, absolute zero=-273.16, universal gas constant=73.562
** ----------------------------------------------------------------------
**
*Amplitude, name=Amp-1, definition=PERIODIC
1,        620.28,           0.,           1.
          0.,           1.
**=======================================
**
*Step, name=Step-1
**
*Dynamic, Explicit
, 100.
*Bulk Viscosity
0.06, 1.2
**
*DSLOAD,AMPLITUDE=Amp-1
**DSLOAD
outside,  P,  80
**
**  
*Output, history
*NODE OUTPUT, NSET=REF-NODE-AA
PCAV, CVOL
**
*output, field
*node output, variable=preselect
U
*element output, variable=preselect
S, LE
*END STEP