WATER JET PHENOMENA FORMED DURING THE INTERACTION OF BUBBLE AND RIGID BOUNDARY
INTRODUCTION Just after the underwater explosion, a shock wave moves outwards at a very high speed, at the same time, the product of detonation will expand and shrink in water, which is called bubble oscillation. Although the bubble pulse pressure is only 20% compared with shock wave, the time of bubble pulse is much longer than that of shock wave, resulting in its impulse is 2-2.5 times greater than that of shock wave. Besides, the energy of bubble makes up nearly half of the total explosive energy. The bubble oscillation in water mainly causes two kinds of damage effect to warship and submarine: whipping and jetting. If the frequency of the bubble oscillation matches the eigenfrequency of the structure, it can lead to the so called whipping effect, which can potentially constitute the second damaging mechanisM in most cases.
WANG Bin WANG Yan-ping TAN Duo-wang
National Key Laboratory of Shock Wave and Detonation Physics Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
778-785
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）