{ "id": "2006.14251", "version": "v1", "published": "2020-06-25T08:44:30.000Z", "updated": "2020-06-25T08:44:30.000Z", "title": "Local Well-Posedness of a Quasi-Incompressible Two-Phase Flow", "authors": [ "Helmut Abels", "Josef Weber" ], "comment": "25 pages", "categories": [ "math.AP" ], "abstract": "We show well-posedness of a diffuse interface model for a two-phase flow of two viscous incompressible fluids with different densities locally in time. The model leads to an inhomogeneous Navier-Stokes/Cahn-Hilliard system with a solenoidal velocity field for the mixture, but a variable density of the fluid mixture in the Navier-Stokes type equation. We prove existence of strong solutions locally in time with the aid of a suitable linearization and a contraction mapping argument. To this end we show maximal $L^2$-regularity for the Stokes part of the linearized system and use maximal $L^p$-regularity for the linearized Cahn-Hilliard system.", "revisions": [ { "version": "v1", "updated": "2020-06-25T08:44:30.000Z" } ], "analyses": { "subjects": [ "76T99", "35Q30", "35Q35", "35R35", "76D05", "76D45" ], "keywords": [ "quasi-incompressible two-phase flow", "local well-posedness", "diffuse interface model", "solenoidal velocity field", "navier-stokes type equation" ], "note": { "typesetting": "TeX", "pages": 25, "language": "en", "license": "arXiv", "status": "editable" } } }