Abstract
Abstract
The algorithm of the Viscous Vortex Domain method implemented in the author’s code VM2D is investigated. This code allows simulating 2D viscous incompressible flows and solving fluid-structure interaction problems. The verification of the algorithm, namely, the correctness of taking into account the viscosity effect, is performed on well-studied test problems of the flow simulation around a circular cylinder for Reynolds numbers in the range 20 . . . 200: the problem of the impulse start of the circular cylinder is considered, and the dependency of the flow separation angle on the Reynolds number is investigated. The comparison shows that for low Reynolds numbers (up to 140), the flow separation angle obtained in numerical simulations by using the VM2D code is in good agreement with the results of other studies. For higher Reynolds numbers, the estimated separation angle is slightly overestimated.
Subject
General Physics and Astronomy
Reference19 articles.
1. Numerical study of slightly viscous flow;Chorin;J. of Fluid Mech.,1973
2. The weighted particle method for convection-diffusion equations. Part 1: the case of an isotropic viscosity;Degond;Mathem. Comp.,1989
3. A new diffusion procedure for vortex methods;Shankar;J. Comp. Phys.,1996
4. Viscous flow simulation using the discrete vortex model — the diffusion velocity method;Ogami;Computers & Fluids,1991
5. The Lagrangian approach to solving the time-dependent Navier-Stokes equations;Ya;Dokl. Phys.,2004
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