计算物理 ›› 2004, Vol. 21 ›› Issue (6): 538-542.

• 研究论文 • 上一篇    下一篇

颗粒Reynolds正应力轨道模型及后台阶两相流动数值模拟

徐江荣1, 周志军2, 张巍2, 周俊虎2, 岑可法2   

  1. 1. 杭州电子科技大学应用物理系, 浙江 杭州 310018;
    2. 浙江大学热能工程研究所, 浙江 杭州 310027
  • 收稿日期:2003-09-03 修回日期:2004-02-03 出版日期:2004-11-25 发布日期:2004-11-25
  • 作者简介:徐江荣(1966-),男,浙江富阳,副教授,博士,从事两相流动理论与数值模拟研究.
  • 基金资助:
    浙江省教育厅科研计划(20030614)项目资助

Particles Reynolds Stresses Trajectory Model and Numerical Simulation for a Backward-facing Step Two-phase Flow

XU Jiang-rong1, ZHOU Zhi-jun2, ZHANG Wei2, ZHOU Jun-hu2, CEN Ke-fa2   

  1. 1. Applied Physics Dept., Hangzhou Institute of Electrionics Engineering, Hangzhou 310037, China;
    2. Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2003-09-03 Revised:2004-02-03 Online:2004-11-25 Published:2004-11-25

摘要: 用随机过程理论建立气固两相耦合脉动量Lagrange方程,并建立了气固两相流随机颗粒轨道模型中颗粒Reynolds正应力的Lagrange方程.将新的模型运用于各向同性的湍流衰减的流场中,模拟颗粒的湍流扩散特性,与文[1]中的模型和实验结果作比较,并使用新模型模拟了后台阶两相流动.

关键词: 颗粒雷诺应力, 湍流扩散, 两相流动, 数值模拟, 随机方程

Abstract: A Lagrangian equation of v'giv'pi on the particles trajectory is obtained with stochastic process theory, and then Lagrangian equation of particle Reynolds stresses is exactly set up. Wang Stock experiment on heavy particle dispersion considered scale ratio and flow decay is simulated by both this method and Zhang's model[1]. Simulation results show the new method is better than Zhang's model. A backward-facing step two-phase flow is calculated by the new model and the results show good agreement with the experiment results.

Key words: particle Reynolds stresses, two-phase flow, numerical simulating, stochastic process

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