SIMULATING TIME HARMONIC FLOWS WITH THE REGULARIZED L-BGK METHOD
- 1 April 2007
- journal article
- research article
- Published by World Scientific Pub Co Pte Ltd in International Journal of Modern Physics C
- Vol. 18 (04) , 661-666
Abstract
A recent improvement of the lattice BGK model, based on a regularization of the precollision distribution function, is applied to three dimensional Womersley flow. The accuracy and the stability of the model are essentially improved by using this regularization. A good agreement with analytical Womersley solution is presented, as well as an improvement of the accuracy over standard L-BGK. Numerical stability of the scheme for a range of Reynolds and Womersley numbers is also presented, demonstrating an enhancement of the stability range of L-BGK for this type of flows.Keywords
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