MULTI_FIELD_MODEL

Specifies an equivalent material model for multi-field simulation.

Type

AcuSolve Command

Syntax

MULTI_FIELD_MODEL("name") {parameters...}

Qualifier

User-given name.

Parameters

field_interation_models (string) [=none]
List of names of field interaction models that are applied to this material model. The name must refer to a defined field_interaction_model entry.
specific_heat_type (enumerated) [=linear]
Type of blending of the different material specific heat.
linear
Linear combination of the individual material specific heat weighted by their respective volume fraction.
viscosity_type (enumerated) [=linear]
Type of blending of the different material viscosity.
linear
Linear combination of the individual material viscosity weighted by their respective volume fraction.
conductivity_type (enumerated) [=linear]
Type of blending of the different material conductivity.
linear
Linear combination of the individual material conductivity weighted by their respective volume fraction.
density_type (enumerated) [=linear]
Type of blending of the different material density.
linear
Linear combination of the individual material density weighted by their respective volume fraction.
harmonic

Harmonic combination of the individual material density weighted by their respective volume fraction.

diffusivity_1_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 1).
linear
Linear combination of the individual material diffusivity for scalar 1 weighted by their respective volume fraction.
diffusivity_2_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 2).
linear
Linear combination of the individual material diffusivity for scalar 2 weighted by their respective volume fraction.
diffusivity_3_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 3).
linear
Linear combination of the individual material diffusivity for scalar 3 weighted by their respective volume fraction.
diffusivity_4_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 4).
linear
Linear combination of the individual material diffusivity for scalar 4 weighted by their respective volume fraction.
diffusivity_5_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 5).
linear
Linear combination of the individual material diffusivity for scalar 5 weighted by their respective volume fraction.
diffusivity_6_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 6).
linear
Linear combination of the individual material diffusivity for scalar 6 weighted by their respective volume fraction.
diffusivity_7_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 7).
linear
Linear combination of the individual material diffusivity for scalar 7 weighted by their respective volume fraction.
diffusivity_8_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 8).
linear
Linear combination of the individual material diffusivity for scalar 8 weighted by their respective volume fraction.
diffusivity_9_type (enumerated) [=linear]
Type of blending of the different material scalar diffusivity (scalar 9).
linear
Linear combination of the individual material diffusivity for scalar 9 weighted by their respective volume fraction.
immiscible_interface_type (enumerated) [=smooth]
Type of interface modelling for multi-field simulation.
smooth
The interface is diffused over a given distance with material properties transitioning smoothly between the different phases.

Description

This command specifies models to be used to compute the average properties for the fluid in multi-field simulation.

MULTI_FIELD_MODEL commands are referenced by ELEMENT_SET commands and replace the MATERIAL_MODEL used in single phase simulation.
MULTI_FIELD_MODEL( "my multi fluid model" ) {
    field_interaction_models      = {"my FIM"} 
    density_type                  = linear
    specific_heat_type            = linear
    viscosity_type                = linear
   immiscible_interface_type      = smooth 
}