东南大学学报（自然科学版）2026，Vol.56Issue(9)：1298-1308,11.DOI:10.3969/j.issn.1001-0505.2026.09.008
典型柱形装药水下爆炸冲击波与气泡脉动荷载特性
Loading characteristics of underwater explosion blast wave and bubble pulsation for typical cylindrical charge
摘要
Abstract
Clarifying the distribution of underwater explosion loads for cylindrical charges is the premise of predicting the damage effects on hydraulic structures under blast loading.First,the numerical simulation method for underwater explosion induced by cylindrical charge was proposed,and its reliability was verified by comparing the simulation results with the existing test data on the blast wave peak pressure and bubble shape.Then,a series of simulations were conducted for a typical warhead in the free and reflected fields.The load distribution law was studied from the perspectives of the pressure and impulse distributions of the blast wave and bubble pulsation as well as the bubble shape.The results indicate that the incident peak pressure of the blast wave exhibits axial attenuation and lateral enhancement,while the charge shape has limited influence on the impulse distribution.The reflected peak pressure of the blast wave follows an inverted bell-shaped distri-bution.The reflection coefficient of horizontal cylindrical charge gradually decreases with the increase of the incident angle,whereas that of vertical charge shows a saddle-shaped variation.The Bjerknes effect induced by the structural surface tilts the bubble jet,resulting in the higher pulsating pressure and impulse than those in the free field and forming a V-shaped high-intensity zone surrounded by an annular low-intensity region.关键词
水下爆炸/柱形装药/冲击波/气泡脉动/压力分布/冲量分布Key words
underwater explosion/cylindrical charge/blast wave/bubble pulsation/pressure distribution/impulse distribution分类
数理科学引用本文复制引用
陈子琪,吴昊,程月华..典型柱形装药水下爆炸冲击波与气泡脉动荷载特性[J].东南大学学报（自然科学版）,2026,56(9):1298-1308,11.基金项目
国家自然科学基金资助项目(52308522) （52308522）
北京理工大学爆炸科学与安全防护全国重点实验室开放课题资助项目(KFJJ24-07M). （KFJJ24-07M）
