Thermal conductivity in Eulerian multiphase model
The conservation of energy for this model is as follows:
If I am working with two phases, this equation can be written separately for each of the phases.
It is unclear to me which thermal conductivity is used for the heat flux term. In the mixture and VOF models they break down this term to show how an effective thermal conductivity is used. Am I to assume that for the Eulerian model that
q_phase1 = - k_phase1.∇T
q_phase2 = - k_phase2.∇T
where k is the material thermal conductivity of each phase?