A new pressure-based lattice-Boltzmann method (HRR-p) is proposed for the simulation of flows for Mach numbers ranging from 0 to 1.5. Compatible with nearest-neighbor lattices (e.g., D3Q19), the model consists of a predictor step comparable to classical athermal lattice-Boltzmann methods, appended with a fully local and explicit correction step for the pressure. Energy conservation—for which the Hermitian quadrature is not accurate enough on such a lattice—is solved via a classical finite volume MUSCL-Hancock scheme based on the entropy equation. The Euler part of the model is then validated for the transport of three canonical modes (vortex, entropy, and acoustic propagation), while its diffusive/viscous properties are assessed via thermal Couette flow simulations. All results match the analytical solutions with very limited dissipation. Last, the robustness of the method is tested in a one-dimensional shock tube and a two-dimensional shock–vortex interaction.
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June 2020
Research Article|
June 23 2020
A pressure-based regularized lattice-Boltzmann method for the simulation of compressible flows
G. Farag;
G. Farag
Aix Marseille University, CNRS, Centrale Marseille, M2P2
, Marseille, France
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S. Zhao
;
S. Zhao
Aix Marseille University, CNRS, Centrale Marseille, M2P2
, Marseille, France
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T. Coratger;
T. Coratger
Aix Marseille University, CNRS, Centrale Marseille, M2P2
, Marseille, France
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P. Boivin
;
P. Boivin
a)
Aix Marseille University, CNRS, Centrale Marseille, M2P2
, Marseille, France
a)Author to whom correspondence should be addressed: [email protected]
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G. Chiavassa;
G. Chiavassa
Aix Marseille University, CNRS, Centrale Marseille, M2P2
, Marseille, France
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P. Sagaut
P. Sagaut
Aix Marseille University, CNRS, Centrale Marseille, M2P2
, Marseille, France
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a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 32, 066106 (2020)
Article history
Received:
April 25 2020
Accepted:
June 05 2020
Citation
G. Farag, S. Zhao, T. Coratger, P. Boivin, G. Chiavassa, P. Sagaut; A pressure-based regularized lattice-Boltzmann method for the simulation of compressible flows. Physics of Fluids 1 June 2020; 32 (6): 066106. https://doi.org/10.1063/5.0011839
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