# Mass_Fraction_Fluid_Robin_Coupled

Syntax

  Bc Diffuse For Mass_Balance [{of} SpeciesName | {in} MaterialPhaseName | {ls} {a | b | c}] {@ | at | for | on | over} Mesh Extent Name [Touching TouchingMeshExtent | Opposing OpposingMeshExtent] = Mass_Fraction_Fluid_Robin_Coupled [Using Data Specification Data Spec Name] [Mass_Fraction_Field = mass_fraction_field | Mass_Fraction_Diffusive_Flux_Field = mass_fraction_diffusive_flux_field | Coeff_Field = coeff_field]

Summary

  Boundary condition for loose coupling of scalars to a free fluid region

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
{in} | {in | material_phase} | –
MaterialPhaseName | string | –
{ls} | {levelset_phase | ls} | –
Mesh Extent Name | string | –
TouchingMeshExtent | string | –
OpposingMeshExtent | string | –
Data Spec Name | string | –
mass_fraction_field | “string” | –
mass_fraction_diffusive_flux_field | “string” | –
coeff_field | “string” | –