2020•Physical Review FluidsOpen access

Turbulence modulation in particle-laden stationary homogeneous isotropic turbulence using one-dimensional turbulence

Marco Fistler, Alan R. Kerstein, David O. Lignell, Michael Oevermann

Abstract

The one-dimensional-turbulence method is extended to capture turbulence modulation caused by particles in stationary forced, homogeneous isotropic turbulence. Because of the very low computational costs of the one-dimensional model, it enables, after validation with direct numerical simulations, the study of turbulent parameter ranges that are not otherwise accessible. This study is a first step in the development toward a reliable subgrid-scale model for high-turbulent large-eddy simulations.

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Key concepts: Turbulence, K-epsilon turbulence model, K-omega turbulence model, Homogeneous isotropic turbulence, Isotropy, Turbulence modeling, Physics, Mechanics