GeoChemFoam: Direct modelling of flow and heat transfer in micro-CT images of porous media

Abstract GeoChemFoam is an open-source OpenFOAM-based numerical modelling toolbox that includes a range of custom packages to solve complex flow processes including multiphase transport with interface transfer, single-phase in multiscale porous media, and reactive mineral dissolution. In this paper, we present GeoChemFoam’s novel model for simulation conjugate heat transfer micro-CT images media. uses the micro-continuum approach describe fluid-solid using volume fraction fluid solid each computational cell. The velocity field solved Brinkman’s equation permeability calculated Kozeny-Carman which results near-zero phase. Conjugate then convection where non-zero, thermal conductivity as harmonic average phase weighted by fraction. Our validated comparison standard two-medium simple 2D geometry. We simulate calculate coefficients different regimes injected analogous injection into geothermal reservoir image Bentheimer sandstone perform sensitivity analysis exchanger random sphere packing.