Extended Lattice Boltzmann Model for Gas Dynamics
| Autor: | Benedikt Dorschner, Mohammad Hossein Saadat, Iliya V. Karlin, Seyed Ali Hosseini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Shock wave Turbulence Mechanical Engineering Lattice boltzmann model Fluid Dynamics (physics.flu-dyn) Computational Mechanics FOS: Physical sciences Gas dynamics Mechanics Physics - Fluid Dynamics Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics Mechanics of Materials 0103 physical sciences Benchmark (computing) Compressibility Sod shock tube 010306 general physics Representation (mathematics) |
| Zdroj: | Physics of Fluids Physics of Fluids, 33 (4) |
| ISSN: | 1070-6631 1089-7666 0031-9171 |
| Popis: | We propose a two-population lattice Boltzmann model on standard lattices for the simulation of compressible flows. The model is fully on-lattice and uses the single relaxation time Bhatnagar-Gross-Krook kinetic equations along with appropriate correction terms to recover the Navier-Stokes-Fourier equations. The accuracy and performance of the model are analyzed through simulations of compressible benchmark cases including Sod shock tube, sound generation in shock-vortex interaction, and compressible decaying turbulence in a box with eddy shocklets. It is demonstrated that the present model provides an accurate representation of compressible flows, even in the presence of turbulence and shock waves. Physics of Fluids, 33 (4) ISSN:1070-6631 ISSN:1089-7666 ISSN:0031-9171 |
| Databáze: | OpenAIRE |
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