Boundary Heat Fluxes

All the domain heat fluxes (vector quantity) are also available as boundary heat fluxes. The boundary heat fluxes are then equal to the mean value of the heat fluxes on adjacent domains. In addition, normal boundary heat fluxes (scalar quantity) are available on boundaries.

Normal Total Heat Flux

The variable ntflux is defined as:

Normal Conductive Heat Flux

The variable ndflux is defined on exterior boundaries as:

•	ndflux = −dflux_spatial(T) if the adjacent domain is on the downside,

•	ndflux = −uflux_spatial(T) if the adjacent domain is on the upside,

and, on interior boundaries, as:

ndflux = (uflux_spatial(T) − dflux_spatial(T))/2

Normal Convective Heat Flux

The variable ncflux is defined as:

Normal Translational Heat Flux

The variable ntrlflux is defined as

Normal Total Energy Flux

The variable nteflux is defined as: