Numerical stability of Entropic versus positivity-enforcing Lattice Boltzmann schemes

A preliminary study of the non-linear stability properties of entropic schemes versus positivity-enforcing (FIX-UP) schemes is presented for the case of two-dimensional cavity flow. It is shown that, although they operate on fairly distinct schedules, both methods achieve substantial stability enhancements over the standard single-time relaxation Lattice Boltzmann scheme.

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Year of publication:	2006
Authors:	Tosi, F. ; Ubertini, S. ; Succi, S. ; Chen, H. ; Karlin, I.V.
Published in:	Mathematics and Computers in Simulation (MATCOM). - Elsevier, ISSN 0378-4754. - Vol. 72.2006, 2, p. 227-231
Publisher:	Elsevier
Subject:	Lattice Boltzmann scheme \| Entropic schemes \| Positivity-enforcing

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010748978