Hi,
I have tried to define a surface-based fluid cavity. The Model is a vary simple cylinder. I use the definition of the fluid cavity from abaqus documentaion like following.
SURFCYLINDER is inner surface of the cylinder. Evry elements have the same normal vector.
*SURFACE, TYPE=ELEMENT, NAME=CAVSURF
SURFCYLINDER, SPOS
*PHYSICAL CONSTANTS, ABSOLUTE ZERO=-273.16, UNIVERSAL GAS CONSTANT=8.314
**
**FLUID CAVITY DEFINITON
**
*FLUID CAVITY, NAME=SPRING, BEHAVIOR=GAS, REF NODE=50000, SURFACE=CAVSURF, AMBIENT PRESSURE=101.36E+3
*FLUID BEHAVIOR, NAME=GAS
*MOLECULAR WEIGHT
0.044
*CAPACITY, TYPE=TABULAR
30
**
I always recieve such error when i execute abaqus input file
***ERROR: NO DATA CARDS PROVIDED FOR *FLUID CAVITY
Many thanks for any suggestion
issares
