Thermal analysis of gas convection in porous media

Samy Ramdane (1) , Eric Chénier (1) , Xavier Nicolas (1)

1 MSME - Laboratoire de Modélisation et Simulation Multi Echelle

Forced convection of a gas in porous media characterized by pores of few micrometers requires large pressure gradients. In addition to the rarefaction effects which may be significant at the solid/gas interface, we show that it may be necessary to account for the pressure work and the viscous dissipation in the energy equation to get the right temperature field induced by the fluid flow.

Mots clés: Numerical simulation; rarefied gas flow; compressible flow; viscous dissipation; pressure work

Domaines: Thermique [physics.class-ph]; Mécanique des fluides [physics.class-ph]

Samy Ramdane, Eric Chénier, Xavier Nicolas. Thermal analysis of gas convection in porous media. 3rd MIGRATE Workshop, Jun 2018, Bastia, France. ⟨hal-01809017⟩