Abstract
Global regularity results for weak solutions of the Navier-Stokes equations for two-dimensional multiphase incompressible fluids are proved under suitable conditions on the viscosity without assuming positive lower bounds on the initial density. As an application, we deduce regularity properties for the integral curves of the corresponding velocity field. Finally, we prove regularity results “in the small” for strong solutions.
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(Accepted October 10, 1995)
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Desjardins, B. Regularity Results for Two-Dimensional Flows of Multiphase Viscous Fluids. Arch Rational Mech Anal 137, 135–158 (1997). https://doi.org/10.1007/s002050050025
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DOI: https://doi.org/10.1007/s002050050025