Journal
PHYSICS OF FLUIDS
Volume 33, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/5.0048029
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Funding
- ETH [ETH-13 17-1]
- European Research Council (ERC) [834763-PonD]
- [s897]
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The two-population lattice Boltzmann model proposed in this study accurately simulates compressible flows, demonstrating good performance even in the presence of turbulence and shock waves.
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.
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