Author(s)

Z. Wu & J.B. Young

Abstract

This paper deals with particle deposition onto solid walls from turbulent flows. The aim of the study is to model particle deposition in industrial flows, such as the one in gas turbines. The numerical study has been carried out with a two fluid approach. The possible contribution to the deposition from Brownian diffusion, turbulent diffusion and shear-induced lift force are considered in the study. Three types of turbulent two-phase flows have been studied: turbulent channel flow, turbulent flow in a bent duct and turbulent flow in a turbine blade cascade. The results show that the current two fluid models are capable of predicting particle deposition rates in complex industrial flows. 1 Introduction Numerical study of particle dispersion/deposition in turbulent flows has traditionally been carried out using two approaches: Lagrangian approach and

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