| 激波诱导惰性堆积粉尘运动的建模及数值模拟 |
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| 引用本文： | 李洁,陈伟芳,任兵,范宝春.激波诱导惰性堆积粉尘运动的建模及数值模拟[J].国防科技大学学报,2001,23(4):1-5. |
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| 作者姓名： | 李洁 陈伟芳 任兵 范宝春 |
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| 作者单位： | 1. 国防科技大学航天与材料工程学院,
2. 南京理工大学动力学院, |
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| 基金项目： | 国家自然科学基金资助项目 ( 19772 0 18) |
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| 摘 要： | 基于空间平均的双流体模型 ,引入描述颗粒脉动速度的粒化温度 ,建立颗粒相的本构方程 ,将粒化温度模型推广到解决高速流动问题。采用AUSM+ 有限差分法 ,数值模拟激波在一定厚度的惰性粉尘床中传播及诱导粉尘颗粒运动的过程。结果表明 ,粒化温度模型较好地描述了这一过程 ,证实了此模型在处理稠密颗粒高速流动和流场存在强间断中的可行性
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| 关 键 词： | 两相流 粒化温度模型 激波 AUSM+方法 |
| 文章编号： | 1001-2486(2001)04-0001-05 |
| 收稿时间： | 2001/1/12 0:00:00 |
| 修稿时间： | 2001年1月12日 |
Modeling and Numerical Study on the Shock-induced Fluidization of Inert Powder Layers by the Granular Flow Models |
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| LI Jie,CHEN Weifang,REN Bin and FAN Baochun.Modeling and Numerical Study on the Shock-induced Fluidization of Inert Powder Layers by the Granular Flow Models[J].Journal of National University of Defense Technology,2001,23(4):1-5. |
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| Authors: | LI Jie CHEN Weifang REN Bin and FAN Baochun |
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| Institution: | LI Jie 1,CHEN Wei fang 1,REN Bin 1,FAN Bao chun 2 |
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| Abstract: | The granular flow models on the basis of the kinetic theory are presented for numerical study on a dense particles bed with shock interaction. For the solid phase, the constitude equations are deduced from the interactions between the mean and the fluctuating motions of solid particles,the latter are represented as functions of the granular flow temperature. Numerical simulation by the AUSM + schemes is employed to analyse the flowfield of the shock induced fluidization of inert powder layers. It shows that the granular flow models are feasible to describle the flow with high speed and strong discontinunity. |
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| Keywords: | two phase flow granular flow models shock waves AUSM + schemes |
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