*FLUID PIPE CONNECTOR LOSS

ProductsAbaqus/Standard

TypeModel data

LevelPartPart instance

Required parameters

TYPE

Set TYPE=CONNECTION to define the connector loss parameters.

Set TYPE=DARBY3K to compute the connector loss using the Darby 3K method.

Set TYPE=HOOPER2K to compute the connector loss using the Hooper 2K method.

Set TYPE=USER to compute the connector loss parameters using user subroutine UFLUIDCONNECTORLOSS.

Optional parameters

LAMINAR FLOW TRANSITION

This parameter is valid only when TYPE=HOOPER2K or TYPE=DARBY3K.

Set this parameter equal to the Reynold's number for the flow in the connector below which the linear formulation is used. If this parameter is omitted, the default value is 1.0.

VALVE CONTROL

Set this parameter equal to USER to define a valve behavior for the connector in user subroutine UFLUIDCONNECTORVALVE. If this parameter is omitted, no valve behavior is defined and the fluid is fully flowing.

Data line to define connector loss (TYPE=CONNECTION)

First (and only) line

Hydraulic area.
Hydraulic diameter.
Connector loss when the flow is in the direction determined by the element connectivity.
Connector loss when the flow is opposite to the direction determined by the element connectivity.

Data line to define connector loss (TYPE=DARBY3K)

First (and only) line

Hydraulic area.
Hydraulic diameter.
Resistance coefficient $K_{1}$ for the 3K method.
Resistance coefficient $K_{\infty}$ for the 3K method.
Resistance coefficient $K_{D}$ for the 3K method.

Data line to define connector loss (TYPE=HOOPER2K)

First (and only) line

Hydraulic area.
Hydraulic diameter.
Resistance coefficient $K_{1}$ for the 2K method.
Resistance coefficient $K_{\infty}$ for the 2K method.

Data line to define connector loss (TYPE=USER)

First (and only) line

Hydraulic area.
Hydraulic diameter.