摘要
基于势流理论,利用边界元方法,对水下爆炸兴波及其对结构物作用问题进行了数值研究。水下爆炸兴波是基于简单气泡模型的假定,运用满足自由水面条件的时域格林函数进行数值模拟。在时域内分析了水下爆炸兴起的水波对结构物的作用,并初步探讨了波浪力随炸药量、埋深及结构物与炸源水平距离的变化规律,有较好的参考价值。在规则波作用下波浪力的计算结果与频域方法吻合良好,验证了该文数值方法的有效性。
Boundary element method based on potential flow theory has been developed to solve the waves induced by underwater explosion and their action on structures in the time domain.Based on the assumption of simple bubble model,waves caused by underwater explosion have been simulated by the evaluations of time-domain Green function.Then underwater explosion induced waves interacting with fixed structures and floating bodies have been numerically analyzed.A relationship between wave force and explosive charge or explosive embedment depth or horizontal distance between explosive source and structures has been studied.The research is worthwhile for references.Comparison of the wave force obtained in time and frequency domain in regular waves shows that they agree well with each other.The result shows that the model is validity.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2010年第6期792-805,共14页
Chinese Journal of Hydrodynamics
基金
自然科学基金(项目编号50921001)
973项目(项目编号2010CB832700)资助
关键词
时域
格林函数
气泡
爆炸兴波
波浪力
time domain
green function
bubble
water waves generated by explosion
wave force
