激波与堆积粉尘相互作用的实验和理论研究

A Measurement for the constitutive Equations of Granular Materials and its Analysis

通过对激波与堆积粉尘相互作用的实验和理论分析 ,可得到堆积粉尘本构方程 .基于该方程 ,本文对激波与堆积粉尘相互作用现象进行了数值模拟 .计算所反映的流场结构与实验图像一致 .

A special method for investigating the constituting equations of granular materials were presented, where shock waves were used to act on the surface of granular material, and results were recorded by means of shadow graphs and pulsed-X ray shadow graphs with the trace particles respectively. The constants in the constitutive equation of the granular material can be determined according to the experimental results and analytical formulas based on shock polars. As a justification, the constitutive equation of a loose starch particle bulk was measured and analysis concerned was given.