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* FLUID BULK MODULUS
6.16
*FLUID BULK MODULUS:
Define compressibility for a hydraulic fluid.
This option is used to define compressibility for the hydraulic fluid model. It can be used only in conjunction
with the *FLUID BEHAVIOR option or the *FLUID PROPERTY option.
Products: Abaqus/Standard
Abaqus/Explicit
Type: Model data
Level: Part, Part instance
References:
•
•
•
•
“Fluid cavity definition,” Section 11.6.2 of the Abaqus Analysis User’s Manual
“Hydrostatic fluid models,” Section 23.4.1 of the Abaqus Analysis User’s Manual
*FLUID BEHAVIOR
*FLUID PROPERTY
Optional parameter:
DEPENDENCIES
Set this parameter equal to the number of field variable dependencies included in the definition of
the fluid bulk modulus, in addition to temperature. If this parameter is omitted, it is assumed that
the fluid bulk modulus depends only on temperature. See “Specifying field variable dependence”
in “Material data definition,” Section 18.1.2 of the Abaqus Analysis User’s Manual, for more
information.
Data lines to define compressibility for a hydraulic fluid:
First line:
1.
2.
3.
4.
Fluid bulk modulus, K.
Temperature.
First field variable.
Etc., up to six field variables.
Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than six):
1. Seventh field variable.
2. Etc., up to eight field variables per line.
Repeat this set of data lines as often as necessary to specify K as a function of temperature and field
variables.
6.16–1
Abaqus Version 6.6
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