Hybrid recursive regularized thermal lattice Boltzmann model for high subsonic compressible flows - Archive ouverte HAL
Article Dans Une Revue Journal of Computational Physics Année : 2019

Hybrid recursive regularized thermal lattice Boltzmann model for high subsonic compressible flows

Résumé

A thermal lattice Boltzmann model with a hybrid recursive regularization (HRR) collision operator is developed on standard lattices for simulation of subsonic and sonic compressible flows without shock. The approach is hybrid: mass and momentum conservation equations are solved using a lattice Boltzmann solver, while the energy conservation is solved under entropy form with a finite volume solver. The defect of Galilean invariance related to Mach number is corrected by the third order equilibrium distribution function , supplemented by an additional correcting term and hybrid recursive regularization. The proposed approach is assessed considering the simulation of i) an isentropic vortex convection, ii) a two dimensional acoustic pulse and iii) non-isothermal Gaussian pulse with Ma number in range of 0 to 1. Numerical simulations demonstrate that the flaw in Galilean invari-ance is effectively eliminated by the compressible HRR model. At last, the compressible laminar flows over flat plate at Ma number of 0.3 and 0.87, Reynolds number of 10 5 are considered to validate the capture of viscous and diffusive effects.
Fichier principal
Vignette du fichier
Hybrid recursive regularized thermal lattice Boltzmannmodel for high subsonic compressible flows.pdf (1.09 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02142837 , version 1 (28-05-2019)

Identifiants

  • HAL Id : hal-02142837 , version 1

Citer

Yongliang Feng, Pierre Boivin, Jérome Jacob, Pierre Sagaut. Hybrid recursive regularized thermal lattice Boltzmann model for high subsonic compressible flows. Journal of Computational Physics, 2019, 394, pp.82-99. ⟨hal-02142837⟩
145 Consultations
723 Téléchargements

Partager

More