Simulating time harmonic flows with the regularized L-BGK method
Hoekstra, Alfons G.
Sloot, Peter M. A.
Date of Issue2007
School of Computer Engineering
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.
International journal of modern physics C
© 2007 World Scientific Publishing Company.