NUMERICAL SIMULATION OF GAS TURBULENCE ENHANCEMENT BY PARTICLE-WAKE EFFECT  

作　　者：ZENG Zhuo-zhi ZENG Zhuo-xiong NAN Ying HAN Shou-lei 

机构地区：[1]Aeronautic and Mechanical Engineering college, Nanchang University of Aeronautics, Nanchang 330063, China

出　　处：《Journal of Hydrodynamics》2007年第2期155-159,共5页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the China Postdoctoral Science Foundation (Grant No.2004036239).

摘　　要：A new turbulence enhancement model was incorporated into the second-order moment two-phase turbulence model and was used to simulate gas-particle flows in swirling chambers and channels with different wall roughness. The results show that compared with the turbulence modification model not accounting for the wake effect, this model, together with the conventional particle source term, gives simulation results in better agreement with the experimental data.A new turbulence enhancement model was incorporated into the second-order moment two-phase turbulence model and was used to simulate gas-particle flows in swirling chambers and channels with different wall roughness. The results show that compared with the turbulence modification model not accounting for the wake effect, this model, together with the conventional particle source term, gives simulation results in better agreement with the experimental data.

关 键 词：gas-particle flows turbulencemodification numerical simulation 

分 类 号：O359[理学—流体力学]