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计入能量损失的气泡运动三维数值模拟 被引量:1

3D Numerical Simulation of Bubble Motion with Energy Loss Accounted
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摘要 在前人研究的基础上,假设能量损失主要发生在气泡体积达到最小的瞬间,通过改变压力参数计及能量损失,结合势流理论,建立气泡三维动力学数值模型。采用边界积分法求解该数值模型,计算得到气泡的动态特性,计算值与实验值吻合良好,验证了数值模型和计算方法的有效性。基于此,分别对自由场中和边界附近的气泡动力学特性进行了模拟,包括水下爆炸气泡以及空化气泡,得到了一些规律性的曲线和结论,旨在为气泡的相关动态特性研究提供参考。 Based on the previous studies, the mechanism of the loss of bubble energy is analyzed in this paper and it is deemed that the loss of energy mostly occurs when the bubble reaches its minimum volume. With the pressure parameters altered and the loss of energy taken into account when the bubble reaches its minimum volume, three-dimensional numerical model for bubble dynamics is built based on the potential flow theory. The boundary integral method is applied to solve this numerical model and the bubble dynamics is obtained. The numerical result coincide with the experimental result well, which proves the nicer accuracy of the numerical model and computing method. Furthermore, based on the numerical model and the computing method, the bubble dynamics in the free field and near the boundary are simulated respectively, including the underwater explosion bubble and the cavitation bubble. Some favorable curves and conclusions are achieved. This paper aims to provide some reference for the relevant research on bubble dynamics.
出处 《中国造船》 EI CSCD 北大核心 2011年第3期15-24,共10页 Shipbuilding of China
基金 国家自然科学基金重点项目(50939002) 国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(10976008) 国家自然科学基金项目(50809018 51009035) 中央高校基本科研业务费专项资金资助(HEUCFZ1001) 第十二届霍英东教育基金(121073) 黑龙江省自然科学基金(A200901)
关键词 船舶 舰船工程 气泡 势流理论 边界积分法 能量 ship engineering bubble potential flow theory boundary integral method energy
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参考文献18

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共引文献109

同被引文献12

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