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Published in:
2011 | OriginalPaper | Chapter
Stabilizing Lattice Boltzmann Simulation of Fluid Flow past a Circular Cylinder with Ehrenfests’ Limiter
Authors : Tahir S. Khan, Jeremy Levesley
Published in: Approximation Algorithms for Complex Systems
Publisher: Springer Berlin Heidelberg
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In this study, two-dimensional fluid flow around a circular cylinder for different laminar and turbulent regimes has been analyzed. We will show that introduction of Ehrenfests’ coarse-graining idea in lattice Boltzmann method can stabilize the simulation for high Reynolds numbers without any grid refinement in the vicinity of circular cylinder where sharp gradients occur. A Strouhal-Reynolds number relationship from low to high Reynolds number has been captured and found satisfactory in agreement with other numerical and experimental simulations.