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Adaptive Wavelet Simulation of a Flow around an Impulsively Started Cylinder Using Penalisation

✍ Scribed by Kai Schneider; Marie Farge

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
154 KB
Volume
12
Category
Article
ISSN
1063-5203

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✦ Synopsis

We present an adaptive wavelet method to integrate the velocityvorticity formulation of the two-dimensional Navier-Stokes equations coupled with a penalisation technique to handle efficiently solid boundaries of arbitrary shape. We demonstrate the validity of this method, called coherent vortex simulation (CVS), to compute the flow around an impulsively started cylinder at high Reynolds number and compare the results with a classical vortex method. ο›™ 2002 Elsevier Science (USA)

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## Abstract In the present study a dynamic grid adaptation (DGA) algorithm is utilized for predicting flow around a circular cylinder in sub‐critical flow regime at a Reynolds number of 1.4Γ—10^5^. The reason for adopting a DGA algorithm is the unsteadiness of the flow field which makes a convention