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Direct numerical simulation of turbulent flow and heat transfer in a spatially developing turbulent boundary layer laden with small solid particles

Event Type: 
Date and Time: 
Friday, October 19, 2018 - 16:30
CTR Conference Room 103
Event Sponsor: 
Parviz Moin, Director of Center for Turbulence Research
Dr. Dong Li

Turbulent flows laden with particles are widely encountered in a great number of natural physical processes and in a host of industrial and environmental applications. In these flows there exist complex interactions between inertial particles, flow turbulence and heat transfer, many of which have not yet been adequately investigated and still remain open questions. In this talk, we will present the results of direct numerical simulations of particle-laden spatially developing turbulent boundary layer flows, using a two-way coupled Eulerian-Lagrangian approach. The main focus of this work is to discuss the effects of inertial particles on turbulent flow, heat transfer and turbulent coherent structures, as well as the phenomenon of particle preferential concentration in the flat-plate turbulent boundary layer. The underlying physical mechanisms of turbulence modulation caused by particles will be analyzed from various aspects.

Dr. Dong Li obtained his PhD degree in Power Engineering and Engineering Thermophysics from Zhejiang University in 2016. Before joining CTR, he was a Postdoctoral Researcher at Zhejiang University. His research interests include numerical studies of particle-laden flows, turbulent boundary layer and heat transfer.