Grid refinement for entropic lattice Boltzmann models

Abstract

We propose a novel multi-domain grid refinement technique with extensions to entropic incompressible, thermal and compressible lattice Boltzmann models. Its validity and accuracy are accessed by comparison to available direct numerical simulation and experiment for the simulation of isothermal, thermal and viscous supersonic flow. In particular, we investigate the advantages of grid refinement for the set-ups of turbulent channel flow, flow past a sphere, Rayleigh-Benard convection as well as the supersonic flow around an airfoil. Special attention is payed to analyzing the adaptive features of entropic lattice Boltzmann models for multi-grid simulations.

submitted to Physical Review E

References in corpus (4)

• Minimal entropic kinetic models for simulating hydrodynamics
• Efficient kinetic method for fluid simulation beyond the Navier-Stokes equation
• Consistent Lattice Boltzmann Method
• Quasi-Equilibrium Lattice Boltzmann Method

Cited by in corpus (9)

• Comprehensive comparison of collision models in the lattice Boltzmann framework: Theoretical investigations
• Analysis and reduction of spurious noise generated at grid refinement interfaces with the lattice Boltzmann method
• Fluid-Structure Interaction with the Entropic Lattice Boltzmann Method
• Entropic Lattice Boltzmann Method for Moving and Deforming Geometries in Three Dimensions
• Extended Lattice Boltzmann Model
• Multi-scale semi-Lagrangian lattice Boltzmann method
• Lattice Boltzmann model for weakly compressible flows
• Flutter Instability in an Internal Flow Energy Harvester
• A fully conservative discrete velocity Boltzmann solver with parallel adaptive mesh refinement for compressible flows