*FLUID EXCHANGE ACTIVATION

*FLUID EXCHANGE ACTIVATION
Activate fluid exchange definitions.

This option is used to activate fluid exchange definitions between two fluid cavities or between a fluid cavity and its environment.

Product: ABAQUS/Explicit

Type: History data

Level: Step

References:

Optional parameters:

AMPLITUDE

Set this parameter equal to the name of the amplitude curve defining a multiplier for the fluid exchange magnitude. See “Amplitude curves,” Section 27.1.2 of the ABAQUS Analysis User's Manual.

BLOCKAGE

Set BLOCKAGE=YES to consider vent and leakage area obstruction by contacted surfaces. The default value is BLOCKAGE=NO.

Set OP=MOD (default) for existing *FLUID EXCHANGE ACTIVATION definitions to remain, with this option defining a fluid exchange activation to be added or modified.

Set OP=NEW if all fluid exchange activations that are currently in effect should be removed. To remove only selected fluid exchange activations, use OP=NEW and respecify all fluid exchange activations that are to be retained.

OUTFLOW ONLY

Include this parameter if the flow is allowed only from the first fluid cavity to the second fluid cavity defined in the *FLUID EXCHANGE option.

If this parameter is omitted, the flow is allowed from both directions. The reference nodes defined on the data line on the *FLUID EXCHANGE option should be in the appropriate order to obtain the desired flow direction.

Data lines to define the fluid exchange activation:

First line:

List of fluid exchange names.

Repeat this data line as often as necessary. Up to 8 entries are allowed per line.