The effect on the shock wave resulting from the rocket explosion on launch pad

IOP Conference Series

article

Yan Wang¹  Hua Wang¹  Cunyan Cui¹ 

[1] Graduate School, Space Engineering University;department of Space Science and Technology, Space Engineering University

DOI  :  10.1088/1755-1315/358/4/042016

学科分类：材料科学（综合）

来源: Institute Of Physics Publishing

【 摘 要 】

Once an explosion occurs, it would threaten the safety of personnel and facilities around the launch site. In order to study the propagation law of shock wave near-ground and the multiplicative effect on peak overpressure of the ground, the finite model of near-surface explosion has been established based on explicit nonlinear dynamic ANSYS/LS-DYNA program. Results show that the existence of the ground will change the propagation law and conform to the reflection law of the shock wave. For gauges at different heights, ground may have different effects on the peak overpressure. When x is not greater than 20m, the peak overpressures of h greater than 2m are the same, but less than the peak overpressures of h equal to 2m. When x is greater than 20m, the peak overpressure decreases with the increase of h, and eventually the peak overpressure of different h gradually tends to be the same.

【 授权许可】

CC BY