Numerical investigations on blast wave attenuation by obstacles

摘要：

　　Combined with 5th-order WENO (Weight Essentially Non-oscillatory) scheme and immersed boundary method,blast waves passing four different obstacles are investigated numerically.Efforts have been made to understand the effect of the shape of the obstacles to the attenuation of the incident blast waves.Our numerical results clearly show that the interaction processes of the incident shock and the obstacles,the corresponding pressure histories during the interaction have been obtained.It shows that the right-faced right angled triangle has the better effects on blast wave attenuation than the left-faced right angled triangle,isosceles triangle and rectangle.

关键词： blast wave attenuation WENO scheme shock wave diffraction

作者: SHA Sha CHEN Zhihua JIANG Xiaohai HAN Junli

作者单位: National Key Laboratory of Transient Physics,Nanjing University of Science & Technology,Nanjing 210094,China

会议类型: 国际会议

会议名称: 2012 International Symposium on Safety Science and Technology (2012安全科学与技术国际会议)

会议地点: 南京

会议语种:英文

页码: 453-457

在线出版日期: 2012-10-23（万方平台首次上网日期，不代表论文的发表时间）