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含颗粒的幂律流体两相湍流研究
引用本文:胡春波,彭永林,曾卓雄,亢力强,陈灏,蔡体敏.含颗粒的幂律流体两相湍流研究[J].西北工业大学学报,2006,24(2):224-227.
作者姓名:胡春波  彭永林  曾卓雄  亢力强  陈灏  蔡体敏
作者单位:1. 西北工业大学,航天学院,陕西,西安,710072
2. 南昌航空工业学院,机械系,江西,南昌,330034
3. 西安交通大学,能动学院,陕西,西安,710049
摘    要:建立了含颗粒的幂律流体两相流动控制方程,首次对泵离心叶轮内含颗粒的幂律流体两相流动进行了计算研究,计算结果表明:从进口到出口,幂律流体的速度减小,压力随半径增大逐渐升高,且压力面上的压力大于吸力面上的压力;吸力面上的颗粒拟温度小于压力面上的颗粒拟温度,且靠近壁面处的大于叶道中的;最后比较了液固两相流与含颗粒的幂律流体的两相流的流动,流体相的紊动能有一定的差别,而且颗粒拟温度也有较大差别。

关 键 词:幂律流体  两相流  流动指数  湍流
文章编号:1000-2758(2006)02-0224-04
收稿时间:2005-05-20
修稿时间:2005年5月20日

On Dense Two-Phase Turbulent Flow of Power Law Fluid with Particles
Hu Chunbo,Peng Yonglin,Zeng Zhuoxiong,Kang Liqiang,Chen Hao,Cai Timin.On Dense Two-Phase Turbulent Flow of Power Law Fluid with Particles[J].Journal of Northwestern Polytechnical University,2006,24(2):224-227.
Authors:Hu Chunbo  Peng Yonglin  Zeng Zhuoxiong  Kang Liqiang  Chen Hao  Cai Timin
Abstract:In the full paper,we describe in detail our research on dense two-phase turbulent flow of power law fluid with particles;here we give only a briefing.We derived dense two-phase turbulent flow governing equation of power law fluid with particles.We used our proposed model to simulate two-phase turbulent flow of power law fluid in centrifugal pump impellers.The results show preliminarily that:(1) velocity is continuously decreasing from impeller's inlet to outlet,and pressure increases gradually as radius increases gradually from inlet to outlet;(2) pressure on suction surface is lower than that on pressure surface; pseudo-temperature of particles at suction surface is lower than that at pressure surface;pseudo-temperature of particles near wall is higher than that in interior;(3) both the pseudo-temperature of particles and the turbulent kinetic energy of the two-phase flow of power law fluid with particles are respectively lower than those of the liquid-solid two phase flow.
Keywords:power law fluid  two-phase flow  turbulent flow
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