{ "id": "2102.00455", "version": "v1", "published": "2021-01-31T13:57:21.000Z", "updated": "2021-01-31T13:57:21.000Z", "title": "Nonisothermal Richards flow in porous media with cross diffusion", "authors": [ "Esther S. Daus", "Josipa Pina Milišić", "Nicola Zamponi" ], "categories": [ "math.AP" ], "abstract": "The existence of large-data weak entropy solutions to a nonisothermal immiscible compressible two-phase unsaturated flow model in porous media is proved. The model is thermodynamically consistent and includes temperature gradients and cross-diffusion effects. Due to the fact that some terms from the total energy balance are non-integrable in the classical weak sense, we consider so-called variational entropy solutions. A priori estimates are derived from the entropy balance and the total energy balance. The compactness is achieved by using the Div-Curl lemma.", "revisions": [ { "version": "v1", "updated": "2021-01-31T13:57:21.000Z" } ], "analyses": { "subjects": [ "35K65", "35K70", "35Q35", "35K55", "76S05" ], "keywords": [ "nonisothermal richards flow", "porous media", "cross diffusion", "two-phase unsaturated flow model", "total energy balance" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }