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Euler equations with non-homogeneous Navier slip boundary conditions
Authors:N.V. Chemetov  S.N. Antontsev
Affiliation:a CMAF, Universidade de Lisboa, Av. Prof. Gama Pinto, 2, 1649-003 Lisboa, Portugal
b Departamento de Matemática, Universidade da Beira Interior, Rua Marquês d’Avila e Bolama, 6201-001 Covilhã, Portugal
Abstract:We consider the flow of an ideal fluid in a 2D bounded domain, admitting flows through the boundary of this domain. The flow is described by Euler equations with non-homogeneous Navier slip boundary conditions. These conditions can be written in the form View the MathML source, View the MathML source, where the tensor View the MathML source is the rate of strain of the fluid’s velocity View the MathML source and View the MathML source is the pair formed by the normal and tangent vectors to the boundary. We establish the solvability of this problem for the class of solutions with Lp-bounded vorticity, p∈(2,]. To prove the solvability we realize the passage to the limit in Navier-Stokes equations with vanishing viscosity.
Keywords:Euler equations   Flow through the boundary   Vanishing viscosity   Solvability
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