Slip boundary conditions
Slip Boundary Conditions for the Compressible Navier–Stokes Equations
... resulting slip-boundary conditions do not depend on the tra- jectory of the boundary point xxx w (ˆt, χ 1 , χ 2 ) in the ...the boundary points. The conditions (118) form two- ...
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Localized rotating convection with no-slip boundary conditions
... no-slip boundary conditions at top and ...no-slip boundary conditions break the conservation of the zonal momentum and change substantially the behavior of the ...
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A benchmark problem to evaluate implementational issues for three-dimensional flows of incompressible fluids subject to slip boundary conditions
... We consider flows of an incompressible Navier–Stokes fluid in a spe- cial three-dimensional domain, namely a tubular domain of finite length with one inlet and one outlet together with the above described class of ...
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Numerical methods for the Stokes and Navier-Stokes equations driven by threshold slip boundary conditions
... It should be noted that one of the first breakthrough for a systematic mathematical analysis of problems formulated as variational inequalities was due to G. Duvaut and J.L. Lions [8]. The main goal of our work is to ...
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Localized rotating convection with no-slip boundary conditions
... The solutions are most localized at the first saddle-node, where L + 20 consists in a 6-roll solution and L − 20 in a 7-roll solution. As one moves up either branch, the solutions grow spatially in the usual manner: ...
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Modeling flow in porous media with rough surfaces: effective slip boundary conditions and application to structured packings
... 3. Upscaling at the Darcy-scale via volume averaging Now that we have derived an effective smooth condition that replaces the rough wall, we can further upscale the system of equa- tions, Eqs. (7) , to obtain a ...
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Modeling flow in porous media with rough surfaces: effective slip boundary conditions and application to structured packings
... effective slip boundary condition that replaces the no-slip condition on the complex rough structure and captures surface ...effective boundary condition for moderate Reynolds ...
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Compressed absorbing boundary conditions for the Helmholtz equation
... condition. In our experiments, q = O(1) and p can be as large as a few hundreds for high accuracy. Finally, we note that the information from the q solves can be re-used for any other block which is in the same block ...
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On the implementation of stream-wise periodic boundary conditions
... pressure at i = 1 was chosen as the reference pressure, p 0 ; and thus ensured that the mean downstream pressure was zero, as the upstream values rose to some finite value. In addition the upstream velocity profile was ...
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EIGENVALUES FOR MAXWELL'S EQUATIONS WITH DISSIPATIVE BOUNDARY CONDITIONS
... Im ρ(x 0 , ξ 0 , z) ≥ h δ C . We recall some basic facts about h-pseudodifferential operators that the reader can find in [3]. Let X be a C ∞ smooth compact manifold without boundary with dimension d ≥ 2. Let (x, ...
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Maximal regularity for non-autonomous Robin boundary conditions
... for any u 0 ∈ V provided a(.; v, w) is Lipschitz continuous and symmetric (see [ 4 ] where also a multiplicative perturbation is admitted) or if a(.; v, w) is symmetric and of bounded variations (see Dier [ 9 ]). ...
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Experimental and numerical analysis of building boundary conditions
... case, boundary conditions can vary with time and intensity if a dynamic process such as a sun patch occurs, even in dwellings filled with obstacles (Figure ...
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Compressible turbulent channel flow with impedance boundary conditions
... a boundary layer and wall-impedance is a classic problem in ...of boundary layers over homogeneous ...specific conditions, which were deemed to be rarely found in aeronautical ...
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The structure of a statistically steady turbulent boundary layer near a free-slip surface
... The slip layer appears as a consequence of the free-slip condition, a by-product of which being that the tangential vorticity components should vanish at the ...
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Prediction of grain boundary stress fields induced by the impingement of persistent slip bands
... of slip bands within slabs of grains which remain. These slip bands are called persistent slip bands (PSBs) since they reappear at the same positions after polishing the samples and ...
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Impact of penalized SOL boundary conditions on plasma turbulence
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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Comparison of outflow boundary conditions for subsonic aeroacoustic simulations
... extended these characteristic methods to the Navier-Stokes equations, assuming that the flow is one-dimensional in the normal direction of the boundary: the so-called Local One Dimensional Inviscid (LODI) ...
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Membrane Shape And Boundary Conditions Estimation Using Eigenmode Decomposition
... its boundary as a set of virtual sensors, of unknown positions but known measurements satisfying known boundary con- ...the boundary conditions (the impedance values on the boundary), ...
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Identification of generalized impedance boundary conditions: some numerical issues
... 4.2 Numerical algorithm To minimize the cost function (12) we use a steepest descent method and we calculate the gradient of F with the help of Lemma 4.1. We solve the direct problems using a finite elements method ...
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DISSIPATIVE BOUNDARY CONDITIONS FOR ONE-DIMENSIONAL NONLINEAR HYPERBOLIC SYSTEMS
... As mentioned in the introduction, the next section is devoted to a comparison of our dissipative boundary condition i.e., ρ1 G′ 0 < 1 with other stability criteria from the literature, n[r] ...
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