A multiresolution remeshed Vortex-In-Cell algorithm using patches

doi:10.1016/j.jcp.2011.05.006

A multiresolution remeshed Vortex-In-Cell algorithm using patches

2011-07-01

44

PRE

AI

J

Johannes Tophøj Rasmussen

G

Georges‐Henri Cottet

J

Jens Honoré Walther *

DOI：10.1016/j.jcp.2011.05.006

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We present a novel multiresolution Vortex-In-Cell algorithm using patches of varying resolution. The Poisson equation relating the fluid vorticity and velocity is solved using Fast Fourier Transforms subject to free space boundary conditions. Solid boundaries are implemented using the semi-implicit formulation of Brinkman penalization and we show that the penalization can be carried out as a simple interpolation. We validate the implementation against the analytic solution to the Perlman test case and by free-space simulations of the onset flow around fixed and rotating circular cylinders and bluff body flows around bridge sections. (C) 2011 Elsevier Inc. All rights reserved.

Keyword:

Vortex-In-Cell algorithm

Multiresolution

Patches

Brinkman penalization

Fixed and rotating cylinder

Bridge aerodynamics

A multiresolution remeshed Vortex-In-Cell algorithm using patches

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