Application of large eddy simulation models to electroconvection turbulence study with lattice Boltzmann method

Electroconvection (EC) turbulence is an important branch of electrohydrodynamics (EHD). This work applies large-eddy simulation (LES) to EHD turbulence based on the lattice Boltzmann method. The Smagorinsky and WALE models are used for the momentum equation, and the turbulent Schmidt number models the charge transport equation. The results are compared with those computed through different numerical models. Both two-dimensional and three-dimensional numerical tests show that the LES models applied in EHD turbulence simulation perform reliable results at high computational speed, making them suitable for further simulations of EHD turbulence.