Products: Abaqus/CFD Abaqus/CAE
Benefits: Flows through fluid-saturated porous media occur in a wide range of industrial and environmental applications. Examples include packed-bed heat exchangers, heat pipes, thermal insulation, petroleum reservoirs, nuclear waste repositories, geothermal engineering, thermal management of electronic devices, metal alloy casting, and flow past porous scaffolds in bioreactors. The new enhancement is very useful for simulating such flows. Flows with or without heat transfer are supported both in pure porous medium and conjugate domains containing both porous and pure fluid regions.
Description: For isothermal flows in porous media, the model implemented in Abaqus/CFD is based on the volume-averaged Darcy-Brinkman-Forchheimer equations that account for both Darcian and inertial non-Darcian effects. The following assumptions are made in deriving the governing equations:
The porosity of the medium does not vary with time or the time scale of variation of the porosity is considered to be much larger than the dominant time scales of the fluid motion.
The permeability of the porous medium is isotropic and dependent only on the porosity of the medium. The widely used Carman-Kozeny permeability-porosity relationship is included in the enhancement.
For porous flows with heat transfer, the volume-averaged temperature transport equation is considered with the assumption of local thermal equilibrium. You define a fluid section for heat transfer analysis involving porous media.
Property module: Material editor: OtherPore Fluid