Abaqus Keywords Reference Manual  

*FLUID LINK

*FLUID LINK
Define properties for fluid link elements.

This option is used to define the properties of fluid link elements.

Products: Abaqus/Standard  Abaqus/Explicit  

Type: Model data

Level: Part,  Part instance  

References:
  • “Modeling fluid-filled cavities,” Section 11.5.1 of the Abaqus Analysis User's Manual

  • “Fluid link elements,” Section 29.8.3 of the Abaqus Analysis User's Manual

Required parameter

Required parameter:

ELSET

Set this parameter equal to the name of the element set containing the fluid link elements for which properties are being defined.

Optional parameters

Optional parameters:

DEPENDENCIES

Set this parameter equal to the number of field variables included in the specification of the mass flow rate. If this parameter is omitted, the mass flow rate is assumed not to depend on any field variables but may still depend on average pressure and average temperature. See “Specifying field variable dependence” in “Material data definition,” Section 18.1.2 of the Abaqus Analysis User's Manual, for more information.

TYPE

Set TYPE=FUNCTION (default) to specify a functional relationship between mass flow rate and pressure difference.

Set TYPE=TABULAR to specify a table of mass flow rate versus pressure difference.

Data lines for TYPE=FUNCTION

Data lines for TYPE=FUNCTION: 

First line:

  1. .

  2. .

  3. Average pressure, , if pressure dependent.

  4. Average temperature, , if temperature dependent.

  5. First field variable.

  6. Second field variable.

  7. Etc., up to four field variables.

Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than four):

  1. Fifth field variable.

  2. Etc., up to eight field variables per line.

Repeat this set of data lines as often as necessary to specify and as functions of , , and field variables.

Data lines for TYPE=TABULAR

Data lines for TYPE=TABULAR: 

First line:

  1. Mass flow rate, q.

  2. Pressure difference, .

  3. Average pressure, , if pressure dependent.

  4. Average temperature, , if temperature dependent.

  5. First field variable.

  6. Second field variable.

  7. Etc., up to four field variables.

Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than four):

  1. Fifth field variable.

  2. Etc., up to eight field variables per line.

Repeat this set of data lines as often as necessary to specify q as a function of , , , and field variables.