基于ALE算法的空气冲击波绕流数值模拟研究  

NUMERICAL SIMULATION OF SHOCK WAVE AROUND-FLOW ON BASIS OF ALE ALGORITHM

作　　者：王飞[1] 朱立新[1] 顾文彬[1] 茼茂辉[1] 王清洁[1] 

机构地区：[1]解放军理工大学工程兵工程学院,南京210007

出　　处：《工程爆破》2002年第2期13-16,共4页Engineering Blasting

摘　　要：利用ALE算法和炸药爆轰产物的JWL状态方程 ,对空气冲击波绕过障碍物的环流现象进行了数值模拟 ,得到了在爆源周围有障碍物的爆炸场初始发展和环流的情况 ,分析了空气冲击波的绕流规律。研究结果表明 ,本研究方法可以很好地描述空气冲击波绕流场参量分布与变化规律 ,并且数值模拟结果与半经验公式的计算结果基本符合 ,但在爆源与障碍物的距离较小时 ,计算值偏大。Using ALE algorithm and the JWL state equation for the product of explosive detonation,the numerical simulation of which the shock wave flows around an obstacle was conducted.The initial development of explosive field and the circle-flow behavior with an obstacle around an explosive source were obtained and the law of shock wave around-flow was analyzed.The research result indicates that the distribution and change of around-flow-field parameters can be fairly described by simulation method in this paper.The simulation result is coincident basically with those calculated by empiric formulas.With a smaller distance between the explosive source and the obstacle,however,the calculated values are inclined to high side.

关 键 词：ALE算法 空气冲击波 绕流 数值模拟 中国 爆炸技术 

分 类 号：TB41[一般工业技术]