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A new approach to the existence of weak solutions of the steady Navier-Stokes system with inhomogeneous boundary data in domains with noncompact boundaries

  1. 1.
    0348177 - MÚ 2011 RIV DE eng J - Článek v odborném periodiku
    Neustupa, Jiří
    A new approach to the existence of weak solutions of the steady Navier-Stokes system with inhomogeneous boundary data in domains with noncompact boundaries.
    Archive for Rational Mechanics and Analysis. Roč. 198, č. 1 (2010), 331-348. ISSN 0003-9527. E-ISSN 1432-0673
    Grant CEP: GA ČR GA201/08/0012
    Výzkumný záměr: CEZ:AV0Z10190503
    Klíčová slova: Navier-Stokes equations * inhomogeneous boundary data
    Kód oboru RIV: BA - Obecná matematika
    Impakt faktor: 2.277, rok: 2010
    http://link.springer.com/article/10.1007%2Fs00205-010-0297-7

    We prove the existence of a weak solution to the steady Navier-Stokes problem in a three dimensional domain Omega, whose boundary partial derivative,Omega consists of M unbounded components Gamma(1), . . . ,Gamma(M) and N - M bounded components Gamma(M+1), . . . , Gamma(N) . We use the inhomogeneous Dirichlet boundary condition on partial derivative Omega. The prescribed velocity profile alpha on partial derivative Omega is assumed to have an L-3-extension to Omega with the gradient in L-2(Omega)(3x3). We assume that the fluxes of alpha through the bounded components Gamma(M+1), . . . , Gamma(N) of a,I (c) are "sufficiently small", but we impose no restriction on the size of fluxes through the unbounded components Gamma(1), . . . , Gamma(M).
    Trvalý link: http://hdl.handle.net/11104/0188774

     
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