并行计算爆炸波在复杂地形下传播  

Computing the propagation of blast in complex terrain with parallel algorithm

作　　者：倪鸿礼[1] 贺元元[1] 徐庆新[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《空气动力学学报》2002年第z1期100-105,111,共7页Acta Aerodynamica Sinica

基　　金：国防科学技术预先研究基金资助项目;国家自然科学基金 (86 3- 30 6主题 )资助项目

摘　　要：本文采用Baldwin -Lomax代数湍流模型和TVD格式的有限差分法 ,利用PVM并行环境 ,采取在原有串行算法上并行化技术路线 ,数值模拟了爆炸波在大范围内 (大于 1Km)复杂地形中的传播过程。根据质能守恒方程 ,提出了简化爆源的计算方法 ;In this paper, the propagation of blast in great range of complex terrain was simulated by solved Navier Stokes equations with Baldwin lomax turbulence model, a finite difference method, TVD scheme and PVM software platform were used, and the parallel program is generated by means of that of the original serail algorithm. In term of mass and energy conservation, the calculation method of simplified source of explosion was put forward; the force loaded by the blast in different spots was studied after the difference weight TNT dynamite exploded in air and near ground.

关 键 词：爆炸波 结构网格 湍流 非定常流 并行 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]