...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Physics >Investigating anisotropic blast wave parameters near the explosive-air boundary using computer simulation and experimental techniques with varying charge geometry
【24h】

Investigating anisotropic blast wave parameters near the explosive-air boundary using computer simulation and experimental techniques with varying charge geometry

机译：

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The prediction of blast wave overpressure using scaled distance calculations use the charge mass and radial distance variables and assumes that the blast wave is isotropic. Simulations and empirical studies demonstrate that altering the charge geometry results in a significant deviation in overpressure vs orientation. While this effect has been measured for cylinders, truncated cones, and cubes, the mechanisms driving geometric blast wave product anisotropy have not been well defined. Velocity vectors plotted from computer simulations in this study show an isotropic radial flow from the cylindrical charges, while the prismatic charges with rectangle, triangle, and five-point star cross sections had significant anisotropy and are overdriven normal to the sides of the charge and underdriven at the corners. The radial expansion of the rim of the dent is measured at the corners and normal to the sides of the charges as an indicator of radial energy distribution and particle flow during breakout. The depth of the dents shows a linear relationship with the breakout radii of the charges with an R-2 value of 0.99. The radial displacement of the dent rim from the perimeter of the explosive charge is uniformly 5.5 mm around the cylindrical charge but is up to 1.5 times than normal to the sides of the prismatic charges and zero at the outside corners indicating an energy flow from the detonation wave toward the initial breakout locations.

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号