Abstract
A laboratory experiment of solid-liquid two phase flow in a vertical two-dimensional jet, as oneof typical multiphase turbulent flows, has been conducted for extending the applicability of the newmultiphase LES (GAL-LES model), which has been recently developed by the authors. The effect ofthe particle concentration on the turbulence characteristics of the two-phase flow is investigated underflow conditions with the two different particle flow rate at the inlet slot. The turbulence intensity of theliquid velocity was found to increase with the particle discharge. The particle-discharge dependence was found also on the lateral distribution of turbulence intensity and the frequency spectra of liquid turbulence, indicating the importance of the relative contribution to turbulence energy production fromthe Reynolds stress and the wakes behind particles.
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