| 颗粒Reynolds正应力轨道模型及后台阶两相流动数值模拟 |
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| 引用本文： | 徐江荣,周志军,张巍,周俊虎,岑可法.颗粒Reynolds正应力轨道模型及后台阶两相流动数值模拟[J].计算物理,2004,21(6):538-542. |
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| 作者姓名： | 徐江荣 周志军 张巍 周俊虎 岑可法 |
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| 作者单位： | 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 |
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| 基金项目： | 浙江省教育厅科研计划(20030614)项目资助 |
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| 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.
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| 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 |
| 文章编号： | 1001-246X(2004)06-0538-05 |
| 收稿时间： | 2003-09-03 |
| 修稿时间： | 2003年9月3日 |
Particles Reynolds Stresses Trajectory Model and Numerical Simulation for a Backward-facing Step Two-phase Flow |
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| XU Jiang-rong,ZHOU Zhi-jun,ZHANG Wei,ZHOU Jun-hu,CEN Ke-fa.Particles Reynolds Stresses Trajectory Model and Numerical Simulation for a Backward-facing Step Two-phase Flow[J].Chinese Journal of Computational Physics,2004,21(6):538-542. |
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| Authors: | XU Jiang-rong ZHOU Zhi-jun ZHANG Wei ZHOU Jun-hu CEN Ke-fa |
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| Institution: | 1. Applied Physics Dept., Hangzhou Institute of Electrionics Engineering, Hangzhou 310037, China;2. Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China |
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| 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 model1]. 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. |
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| Keywords: | particle Reynolds stresses two-phase flow numerical simulating stochastic process |
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