Simulating an exterior domain for drag force computations in the lattice Boltzmann method

Article Article scientifique Article Simulating an exterior domain for drag force computations in the lattice Boltzmann method eng 2006 author Latt Jonas 512884 author Grillet Yannick 590824 author Chopard Bastien 22320 author Wittwer Peter 26560 169-172 10.1016/j.matcom.2006.05.026 0378-4754 http://linkinghub.elsevier.com/retrieve/pii/S0378475406001273 The simulation of a stationary fluid flow past an obstacle by means of a lattice Boltzmann method is discussed. The problem of finding appropriate boundary conditions on the boundaries of the truncated numerical domain is addressed by a method recently discussed in the literature, based on a truncated expansion of the solution. The iterative process at the heart of this method is coupled with the iteration steps of a progressive grid refinement technique that allows a rapid convergence towards a well resolved stationary state. It is shown that this combination results in a highly efficient numerical tool which can speed up the resolution process in a substantial manner. Drag force computation Artificial boundary condition Lattice Boltzmann method Nested grid technique Dewey 025.063 Dewey 500.2 13 Centre universitaire d'informatique 0D3 37 Département de physique théorique 133 32 Département d'informatique 18 false Mathematics and computers in simulation 72 2-6 21d66c3a-e1a2-45da-9ca6-ffa81682e610 Article (Published version) Restricted Wittmer28.pdf 153731 application/pdf restrictedAccess Centres et instituts / Centre universitaire d'informatique Faculté des sciences / Section de physique / Département de physique théorique Faculté des sciences / Département d'informatique

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Simulating an exterior domain for drag force computations in the lattice Boltzmann method	Mathematics and computers in simulation			2006	537	0

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Grillet, Yannick