The solid-phase stresses are derived by making an analogy between the random particle motion arising from particle-particle collisions and the thermal motion of molecules in a gas, taking into account the inelasticity of the granular phase which are given by 14.177.

All of the k-e turbulence models are available, and may apply to all phases or to the mixture. All other features available in ANSYS FLUENT can be used in conjunction with the Eulerian multiphase model, except for the following limitations: The Reynolds Stress turbulence model is not available on a per phase basis.