物理学报2012，Vol.61Issue(23)：321-327,7.
沟槽角度对金属表面微射流性质的影响
Groove angle effect on micro-jet from shocked metal surface
王裴 1邵建立 1秦承森1
作者信息
- 1. 北京应用物理与计算数学研究所计算物理实验室,北京100094
- 折叠
摘要
Abstract
According to smoothed particle hydrodynamics, we investigate numerically the micro-jets from grooved surfaces of different metals, where the velocities of jet head and material sources are discussed in detail. Our simulation results suggest that the jetting factor reaches its maximum at the half angle 45 degree, and the jetting factor reduces with the increase or decrease of the groove angle; also, the maximum velocity of jet shows a linear reduction with the increase of groove angel. Those results are consistent with the corresponding experimental results. The jetting material source and its dynamical process are analyzed. It is shown that with the increase of groove angel, the jet material sources transfer to the bottom of groove from two-side layer, while at the groove angel near 45 degree, a homogenous source layer throughout the groove comes into being. Finally, we further explain the jetting dynamics from different grooves by particle trajectory and its mechanical quantity history.关键词
微射流/冲击/光滑粒子Key words
jet/shock/smoothed particle hydrodynamics分类
数理科学引用本文复制引用
王裴,邵建立,秦承森..沟槽角度对金属表面微射流性质的影响[J].物理学报,2012,61(23):321-327,7.
