Abstract
A Reynolds stress model for predicting gas-particle two-phase turbulent flows is developed to consider interactions between dispersed particles and fluid turbulence. The effects of dispersed particles on fluid turbulence are added to the Reynolds stress model for single-phase turbulent flows. The model coefficients are determined based on the experimental data of a gas-particle round jet and a fully developed vertical pipe flow. The proposed model can satisfactorily reproduce the mean flow and turbulent properties of the gas-particle round jet, the fully developed pipe flow, and the swirling flow. Finally, the model is applied to the gas-particle highly swirling flow in a cyclone separator to predict the particle collection performance. The Reynolds stress model can reproduce the flow field, although it slightly underestimates the particle collection efficiency for fine particles.
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