7.16.1.20.58. Viscous_Dissipation

Syntax

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

Summary

Viscous dissipation source for energy equation

Description

S = M \sigma_v \cdot \nabla v

where M is the optional multiplier parameter, \sigma_v the viscous stress tensor and v the velocity.

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