A NEW TURBULENCE MODULATION IN SECOND-ORDER MOMENT TWO-PHASE MODEL AND ITS APPLICATION TO HORIZONTAL CHANNEL  

作　　者：ZENG Zhuo-xiong 

机构地区：[1]Aeronautic and Mechanical Engineering College, Nanchang Hangkong University, Nanchang 330063, China

出　　处：《Journal of Hydrodynamics》2008年第3期331-338,共8页水动力学研究与进展B辑（英文版）

基　　金：the China Postdoctoral Science Foundation (Grant No.2004036239);the Foundation of Jiangxi Educational Committee (Grant No.GJJ08230)

摘　　要：A new second-order moment two- phase turbulence model accounting for particle wake effect was established and used to simulate gas-particle flow in a horizontal channel for different values of wall roughness. The results show that compared with the model without considering the particle wake effect, the present model gives simulation results agreeing much better with the experimental results for the gas turbulence modulation, but the predicted results for particle motion with the two kinds of models are quite close.A new second-order moment two- phase turbulence model accounting for particle wake effect was established and used to simulate gas-particle flow in a horizontal channel for different values of wall roughness. The results show that compared with the model without considering the particle wake effect, the present model gives simulation results agreeing much better with the experimental results for the gas turbulence modulation, but the predicted results for particle motion with the two kinds of models are quite close.

关 键 词：gas-particle flows turbulence modification numerical simulation 

分 类 号：O359[理学—流体力学]