Capillarity-driven Stokes flow: the one-phase problem as small viscosity limit

Matioc, Bogdan-Vasile and Prokert, Georg (2023) Capillarity-driven Stokes flow: the one-phase problem as small viscosity limit. ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK, 74 (6): 212. ISSN 0044-2275, 1420-9039

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Abstract

We consider the quasistationary Stokes flow that describes the motion of a two-dimensional fluid body under the influence of surface tension effects in an unbounded, infinite-bottom geometry. We reformulate the problem as a fully nonlinear parabolic evolution problem for the function that parameterizes the boundary of the fluid with the nonlinearities expressed in terms of singular integrals. We prove well-posedness of the problem in the subcritical Sobolev spaces H-s(R) up to critical regularity, and establish parabolic smoothing properties for the solutions. Moreover, we identify the problem as the singular limit of the two-phase quasistationary Stokes flow when the viscosity of one of the fluids vanishes.

Item Type: Article
Uncontrolled Keywords: QUASI-STATIC MOTION; MUSKAT PROBLEM; INTERFACE; SEDIMENTATION; REGULARITY; PARTICLES; DROP; Quasistationary Stokes problem; Singular integrals; Single layer potential
Subjects: 500 Science > 510 Mathematics
Divisions: Mathematics
Depositing User: Dr. Gernot Deinzer
Date Deposited: 05 Mar 2024 12:20
Last Modified: 05 Mar 2024 12:20
URI: https://pred.uni-regensburg.de/id/eprint/59321

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