多源水下爆炸气泡近水面耦合作用机理研究

项目名称： 多源水下爆炸气泡近水面耦合作用机理研究

项目编号： No.11502020

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 李梅

作者单位： 北京理工大学

项目金额： 22万元

中文摘要： 本项目以发展新原理水面舰艇自防御手段为背景，研究多源水下爆炸气泡近水面耦合作用机理及其与爆炸水幕空间分布之间的联系。具体开展如下研究：(1) 研究多源水下爆炸气泡膨胀、融合、破裂等及其与水面的耦合动力学特性，建立气泡形态演变数学模型；(2) 研究多流体相互作用过程中的速度、压力等流场变化，建立气泡动态特性与流场变化的联系，揭示多源水下爆炸气泡近水面耦合作用机理；(3) 研究多源水下爆炸气泡与水面相互作用后的爆炸水幕现象，获得水幕形态随起爆深度、间距、排列方式和时间的演变规律，揭示爆炸水幕的形成机理；(4) 建立爆炸水幕空间分布参数计算模型，预测给定装药量和起爆条件下爆炸水幕最大高度、宽度。本项目研究可发展多气泡耦合动力学理论，推进水幕反导武器系统的建设，为大型水面舰艇自防御武器系统设计提供科学依据和理论支撑。

中文关键词： 水下爆炸；爆炸气泡；爆炸水幕；耦合机理

英文摘要： Depending on the background of developing new principle of surface ship self-defense means, this project will study the coupling mechanism between multi-source underwater explosion bubbles and water the surface, and the relationship with the space distribution of explosive plume. Specific studies are as bellow: (1) Research on expansion, fusion, rupture processes of multi-source underwater explosion bubbles and the coupling dynamics between explosion bubbles and water surface. Establish a mathematical model of bubble shape evolution. (2) Research on the flow field changes in the interaction process of multi-fluid. Establish the links between the flow field and the bubble`s motion. Reveal the coupling mechanism between underwater explosive bubbles and water surface. (3) Research on the explosive plume phenomenon caused by the interaction between the multi-source underwater explosion bubbles and the water surface. Acquire the developing regulation of explosive plume shape and its relationship with the factors such as detonation depth, spacing, arrangement and the time evolution. Revealing the formation mechanism of explosive plume; (4) Establish the parameters calculation model of the space distribution of explosive plume. Predict the max height and width of the explosive plume under the given conditions. This project studies can develop multiple bubble coupling dynamics theory, promote the construction of explosive plume anti-missile weapon system, and provide a scientific basis and theoretical support for the design of large surface ship self-defense weapon system.

英文关键词： underwater explosion ;explosion bubble;explosive plume;coupling mechanism