Large Eddy Simulation of Micro-Particles Transport with Different Mass Flow Rate in Turbulent Planar Jet Flow  

作　　者：LIN Peifeng WU Dichong ZHU Zefei 

机构地区：[1]Faculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, 310018, China [2]Business Administration College, Zhejiang University of Finance and Economic, Hangzhou, 310018, China [3]School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China

出　　处：《Journal of Thermal Science》2012年第6期572-576,共5页热科学学报（英文版）

基　　金：supported by National Natural Science Foundation of China (Grant No. 50976107 and 51206149);National Key Technology R&D Program of China (Grant No. 2009BAF39B01);Zhejiang Science Technology Project (Grant No. 2011C11073)

摘　　要：The motion of micro-particles with different mass flow rate in the planer turbulent jet flow has been simulated, using LES method to obtain the flow vorticity evolution and Lagrangian method to track micro-particles. The re- suits showed that when the flow rate is small, the particles more likely to present in the vortex periphery, the dis- tribution pattern is similar to the flow pattern. When the flow rate is high, some particles will escape from the mo- tion region to the original static region, so that in the jet region, particles are relatively evenly distributed. When the flow field is full developed, the particles average concentration in the y direction affected by the mass flow rate relative slightly, the normalized mean particles concentrations at different flow rate were similar to Gaussian shape.

关 键 词：Large eddy simulation turbulent jet flow MICRO-PARTICLE mass flow rate 

分 类 号：O357.5[理学—流体力学] TQ327.1[理学—力学]