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We examine the influence of roofs' shapes on the boundary layer of a simplified urban canopy by computing non-stationary Navier-Stokes flow over a periodic pattern. The solution is obtained by means o...f finite element method (FEM). We use non-conforming Crouzeix-Raviart elements for velocity and piecewise constant elements for pressure. The resulting linear system is solved by the multigrid method. We present computational studies of the problem.続きを見る
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1.Introduction 2.Weak formulation of Navier-Stokes equations 3.Numerical solution using FEM 4.Experimental order of convergence 5.Numerical results 6.Conclusion
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