*EULERIAN BOUNDARY

Define inflow and outflow conditions at Eulerian mesh boundaries.

This option is used to specify inflow and outflow conditions at the boundaries of an Eulerian mesh.

This page discusses:

See Also
In Other Guides
Defining Eulerian Boundaries

ProductsAbaqus/ExplicitAbaqus/CAE

TypeHistory data

LevelStep

Abaqus/CAELoad module

Optional parameters

INFLOW

Set INFLOW=FREE (default) if Eulerian material can flow freely into the Eulerian domain.

Set INFLOW=NONE if neither Eulerian material nor void can flow into the Eulerian domain.

Set INFLOW=VOID if only void can flow into the Eulerian domain.

OP

Set OP=MOD (default) to modify existing inflow/outflow conditions or to define additional inflow/outflow conditions.

Set OP=NEW to remove all existing inflow/outflow conditions.

OUTFLOW

This parameter is used to define boundary conditions in unbounded domain problems.

Set OUTFLOW=FREE (default if INFLOW=VOID) if Eulerian material can flow freely out of the Eulerian domain.

Set OUTFLOW=NONE if Eulerian material cannot flow out of the Eulerian domain. The parameter value must be used with INFLOW=NONE. Use this combination to enforce tangential-only flow directions at the Eulerian boundary.

Set OUTFLOW=NONREFLECTING to specify a nonreflecting radiation boundary condition.

Set OUTFLOW=NONUNIFORM PRESSURE to specify an equilibrium condition at the boundary.

Set OUTFLOW=ZERO PRESSURE (default) to specify a zero pressure at the boundary.

Data lines to define the surface where Eulerian boundary conditions are applied

First line

  1. Surface name.

Repeat this data line as often as necessary to define inflow/outflow conditions for different surfaces.