One-dimensional Preconditioning of Krylov Subspace Methods for the Navier{Stokes Equations
نویسنده
چکیده
The stationary Navier{Stokes equations are solved in 2D with preconditioned Krylov subspace methods, where the preconditioning matrix is derived from a semi-implicit Runge{Kutta scheme. By this approach the spectrum of the coeecient matrix is improved. Numerical experiments for the ow over a semi-innnite at plate show that the preconditioning substantially improves the convergence rate. The number of iterations proves to be independent of the Reynolds number.
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