Presentation time: 10:00-11:00, November 5, 2022 (Saturday)

Report form: wechat video live: search "School of Mechanical Engineering, Yanshan University"

Speaker: Ji Yun

Author: JI YUN, LECTURER, DOCTOR of Engineering, master supervisor, TEACHER OF Department of Mechanical AND Electrical Control Engineering, Yanshan University. He undertakes the undergraduate professional basic courses "Engineering Fluid Mechanics" and "Hydraulic and Pneumatic Transmission" and other courses. His main research interests include mechanical system dynamics, particle multiphase flow theory and application, pneumatic transport mechanism and process characteristics, computational fluid dynamics and discrete element coupling numerical simulation methods, etc. Member of Youth Special Committee of Fluid Transmission and Control Branch of Chinese Mechanical Society, member of Extra-Large Engineering Transport Vehicle Branch of China Construction Machinery Society, presided over 1 Youth project of National Natural Science Foundation, 1 Youth project of Hebei Province Natural Science Foundation, and participated in 5 General projects of National Natural Science Foundation. He has published more than 10 SCI papers, among which the first author has published 7 SCI papers and authorized more than 10 invention patents. He is the reviewer of SCI journals such as Powder Technology, Tribology International and Advanced Powder Technology.

Fluid-solid systems play an important role in a variety of industries, from pharmaceuticals and consumer goods to chemical plants and energy production. With the development of these areas, there has been a variety of equipment and applications, the most prominent being fluidized and jetted beds, granulators and mixers, pneumatic conveying, drying, condensation, coating and combustion. The most promising approach for modeling flow in these systems is the CFD-DEM approach, which couples computational fluid dynamics (CFD) of fluid phases with discrete element methods (DEM) of particles. By reviewing the progress of particle fluid flow modeling, the background, basic methods and application cases of CFD-DEM, the latest application of the simulation of particle separation and classification device, fluidized bed method formation and energy conversion, crushing device, filtration and bioreactor, focusing on the application case of CFD-DEM method in pneumatic transport, The future trends and development prospects of CFD-DEM coupling methods were determined and discussed.

School of Mechanical Engineering, Yanshan University

November 3, 2022