Gap_Conductance

Syntax

Enforcement For Energy [{of} SpeciesName | {in} MaterialPhaseName | {ls} {a | b | c}] {=} Gap_Conductance [Toggle = toggle]

Summary

Applies a contact heat flux of the form \alpha (k_{1} \nabla T_{1} \cdot n_{1} + k_{2} \nabla T_{2} \cdot n_{2} + \tilde h (T_{1} - T_{2}) )/2 to sides 1 and 2 of the contact interface where \alpha = 1 - \bar h / 2h. With h, a user defined coefficient and \bar h, an average conductance coefficient, then \tilde h = 2h for h \ll \bar h and \bar h otherwise. Used in conjunction with a CONDUCTANCE COEFFICIENT model.

Description

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

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}

–

{=}

{= | are | is}

–

toggle

“string”

–