固体粒子通过不同倾角槽道的流动特性研究  

SOLID PARTICLE MOVEMENT IN CHANNEL WITH SEVERAL INCLINATION OF FLUID FLOW

作　　者：葛满初[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080

出　　处：《力学与实践》2002年第6期15-17,共3页Mechanics in Engineering

基　　金：国家自然科学基金重大项目(59995464)资助.

摘　　要：透平机械广泛地应用于矿山通风,余能发电,透平机械内部流动介质是气体和固体粒子两相混合物.固体粒子的近壁行为特性要受到固体壁面的影响.本文采用了N-S方程和k-ε双方程湍流黏性模型来计算模拟透平内部的气固两相流动.模拟结果表明固体粒子在壁面的反弹受到了固壁存在的明显影响.获得了固体粒子的近壁行为特性与固体粒子尺度、通道倾角及流体流速相关的规律.The gas turbine is used extensively for the mine ventilation and fumes turbine. It concerns a two phase flow with gas and solid particle. Near the solid surface the movement of the solid particle is affected, when the gas flows through the turbine. In this paper, the N-S equation and k-ε viscous model are adopted for the simulation of the two phase flow in the turbine. The simulation results of the rebound of the particles from the solid surface show that the influence of the solid surface is obvious. The movement of the solid particle is obtained for the different particle granularity and channel inclination with which the gas passes through.

关 键 词：气固两相流 透平 反弹 湍流 黏性模型 通道倾角 流动特性 

分 类 号：O359[理学—流体力学]