1994•PROCEEDINGS OF HYDRAULIC ENGINEERINGOpen access

Analysis of Interaction between Turbulence generated by Settling Particles and Oscillating Grid Turbulence

Masahiro TAMAI, Kohji Muraoka

Abstract

In order to study turbulence modulation in solid-liquid two-phase flows, in particular effects of slip velocity between the two phases on turbulence structure of the fluid phase, interaction between turbulence generated by settling particles and the oscillating grid turbulence is calculated using the turbulence model based on the one-point closures. The calculated values either for the turbulence due to settling particles or for the oscillating grid turbulence agree well with the experimental data in the previous studies. And the model predicts that mixing of particles decays turbulence of the fluid phase.

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Key concepts: Turbulence, K-epsilon turbulence model, Settling, K-omega turbulence model, Mechanics, Physics, Turbulence modeling, Turbulence kinetic energy