12 research outputs found

    Boundary Asymptotic Analysis for an Incompressible Viscous Flow: Navier Wall Laws

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    We consider a new way of establishing Navier wall laws. Considering a bounded domain Ω\Omega of R N , N=2,3, surrounded by a thin layer Σϵ\Sigma \epsilon, along a part Γ\Gamma2 of its boundary ∂Ω\partial \Omega, we consider a Navier-Stokes flow in Ω∪∂Ω∪Σϵ\Omega \cup \partial \Omega \cup \Sigma \epsilon with Reynolds' number of order 1/ϵ\epsilon in Σϵ\Sigma \epsilon. Using Γ\Gamma-convergence arguments, we describe the asymptotic behaviour of the solution of this problem and get a general Navier law involving a matrix of Borel measures having the same support contained in the interface Γ\Gamma2. We then consider two special cases where we characterize this matrix of measures. As a further application, we consider an optimal control problem within this context

    Editorial (Special Issue on Multiscale Problems in Science and Technology)

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    This Special Issue of the journal Nonlinear Analysis — Real World Applications contains a set of contributions based on talks delivered at the conference Multiscale Problems in Science and Technology. Challenges to Mathematical Analysis and Perspectives II which was held in Dubrovnik, Croatia, from October 1 to October 6, 2007

    A Multiscale Method for Porous Microstructures

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