| 梢涡空泡初生预报方法 |
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| 引用本文： | 韩宝玉,熊鹰,叶金铭.梢涡空泡初生预报方法[J].海军工程大学学报,2011(4):27-32. |
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| 作者姓名： | 韩宝玉 熊鹰 叶金铭 |
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| 作者单位： | 海军工程大学船舶与动力学院; |
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| 基金项目： | 国家自然科学基金资助项目(51079157); 海洋工程国家重点实验室基金资助项目(0811) |
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| 摘 要： | 应用气泡动力学方程和气泡运动微分方程研究了梢涡空泡的初生问题.建立了球形气泡平均压力模型,通过模拟梢涡流场中的球形气泡形态对梢涡空泡的初生进行预报.应用平均压力模型分别计算了三种尺度水翼梢涡流场中不同初始尺寸气泡在一定时间内的半径和辐射声压,梢涡用轴向梢涡尺寸不变的兰金涡代替.计算结果表明:从光学法和声学法角度选取空化...
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| 关 键 词： | 气泡动力学 空泡初生 兰金涡 相似准则 |
Prediction of tip-vortex cavitation inception |
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| HAN Bao-yu,XIONG Ying,YE Jin-ming.Prediction of tip-vortex cavitation inception[J].Journal of Naval University of Engineering,2011(4):27-32. |
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| Authors: | HAN Bao-yu XIONG Ying YE Jin-ming |
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| Institution: | HAN Bao-yu,XIONG Ying,YE Jin-ming(College of Naval Architecture and Power,Naval Univ.of Engineering,Wuhan 430033,China) |
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| Abstract: | This paper dealt with the tip vortex cavitation inception by using the bubble dynamics equation and the bubble motion equation,and established a spherical bubble average pressure model.The tip vortex cavitation inception was predicted by simulating the spherical bubbles in the tip vortex flow field.Bubble size and emitted acoustic pressure shown in a certain time were calculated for various initial nuclei sizes and tip vortex of three scaled hydrofoils.The tip vortex flow field was represented by a Rankine ... |
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| Keywords: | bubble dynamics cavitation inception Rankine vortex scaling law |
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