7.17.1.20.15. Foam_Expansion

Syntax

Source For Energy ([{of} SpeciesName] | [{in} MaterialPhaseName] | [{ls} {a | b | c}]) {@ | at | for | on | over} MeshPartIdentifier = Foam_Expansion ([Power_Output = power_output] | [Toggle = toggle] | [Multiplier = multiplier])

Summary

Foam expansion source for energy equation

Description

$S = -M \rho C_p T X \nabla \cdot v$

where $M$ is the “multiplier” parameter, $\rho$ the density, $c_p$ the specific heat, $T$ the temperature, $v$ the velocity, and $X$ the volume fraction of gas.

The following options are present in most boundary conditions/sources. The meaning of each option is as follows:

Power_Output: If specified, the total (integrated) power of the given BC/Src is calculated and stored into the global variable name specified as the power_output argument.
Toggle: If given, specifies which toggle block controls whether this BC is active or not.

Parameter	Value	Default
{of}	{of \| species \| subindex}	–
SpeciesName	string	–
{in}	{in \| material_phase}	–
MaterialPhaseName	string	–
{ls}	{levelset_phase \| ls}	–
MeshPartIdentifier	string	–
power_output	“string”	–
toggle	“string”	–
multiplier	real	-1