| 堆积粉尘本构方程及其应用 |
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| 引用本文： | 雷勇,范宝春,冮强.堆积粉尘本构方程及其应用[J].南京理工大学学报(自然科学版),2003,27(1):33-35,101. |
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| 作者姓名： | 雷勇 范宝春 冮强 |
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| 作者单位： | 南京理工大学动力工程学院,南京,210094 |
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| 基金项目： | 国家自然科学基金资助项目(1 9972 0 1 8) |
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| 摘 要： | 利用实验测得的与流场有关的特征参数值和相关理论，确定粉尘的本构方程，基于该方程，利用激波极曲线理论，可得到该流场特征参数随激波速度变化的关系曲线，对该流场进行数值模拟，可描述波后的流场结构，理论计算和实验结果较为一致。
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| 关 键 词： | 堆积粉尘 激波 本构方程 数值模拟 流场 相互作用 |
Constitutive Equation of Granular Materials and Its Application |
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| LeiYong,FanBaochun,GangQiang.Constitutive Equation of Granular Materials and Its Application[J].Journal of Nanjing University of Science and Technology(Nature Science),2003,27(1):33-35,101. |
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| Authors: | LeiYong FanBaochun GangQiang |
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| Abstract: | The constants in the constitutive equation of granular material have been determined according to the experimental results and analytical formulas based on shock polars. The numerical investigations on interactions of shock waves with air/granular interface were carried out by using the constitutive equation. The calculated flow fields induced by the interactions are in good agreement with that shown by experimental photographs recorded by the shadow graphs and the pulsed X-ray shadow graphs with trace particles. Effects of the strength of shock waves and the material density of particles on flow fields were discussed. |
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| Keywords: | shock wave constitutive equation numerical simulation |
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