ABAQUS Verification Manual  


2.2.28 Hydrostatic fluid

Product: ABAQUS/Standard  

Elements tested

F2D2    F3D4   

Problem description

Material:

Incompressible fluid

Reference density, = 10.0

Reference temperature, = 100.

Thermal expansion:

Expansion Coeff.Temperature
1.E–50
4.E–5300.

Initial temperature, = 200.

Nearly incompressible fluid

Reference density, = 10.0

Bulk compressibility:

Bulk modulusTemperature
4.E+50.
1.E+5300.

Reference temperature, = 100.

Thermal expansion:

Expansion Coeff.Temperature
1.E–50.
4.E–5300.

Initial temperature, = 200.

Pneumatic fluid

Ambient pressure, = 14.7

Absolute zero temperature, = –460.

Reference density, = 10.0

Reference pressure for density, = 0.

Reference temperature for density, = 200.

Initial temperature, = 200.

(The units are not important.)

Results and discussion

The tests in this section are set up as cases of homogeneous deformation of a “block” of hydrostatic fluid. The fluid pressure, temperature, and cavity volume at the cavity reference node are the results of interest. The pressure reported for the pneumatic fluid is the gauge pressure, not the absolute pressure.

The following five steps are executed:

  1. Load

  2. Increase fluid temperature

  3. Add prescribed amount of fluid

  4. Remove prescribed amount of fluid

  5. Decrease fluid temperature

Input files

mfhhit1ahc.inp

Incompressible, thermal expansion with temperature dependence, F3D4 elements.

mfhhnt1ahc.inp

Nearly incompressible with temperature dependence, thermal expansion with temperature dependence, F3D4 elements.

mfhpno1ahc.inp

Pneumatic, F2D2 elements.