作者：高可心^1,2, 金良安^1,2, 苑志江^1,2, 覃若琳^1,2

作者单位：1. 海军大连舰艇学院航海系, 辽宁 大连 116018;
2. 海军大连舰艇学院 军事航海军队重点实验室, 辽宁 大连 116018

关键词：舰船尾流;气泡尾流场;数密度衰减;螺旋桨转速

摘要：

为探究舰船气泡尾流场中气泡的数密度衰减特性，通过港内海况条件下冲锋舟航行实验，以高速摄像机采集实验测得的不同螺旋桨转速下的真实气泡尾流场数据，对舰船气泡尾流场中不同螺旋桨转速工况下气泡的数密度衰减特性进行分析，得出舰船气泡尾流场中气泡数密度随时间呈指数衰减，最大气泡数密度可达8×10⁵/m³，且衰减情况受螺旋桨转速的影响，转速越高衰减越快，并构建舰船气泡尾流场中考虑螺旋桨转速的气泡数密度衰减模型，模型与实验结果吻合良好，表明模型的正确性和应用价值，对舰船气泡尾流场微观气泡探测和鱼雷制导等研究应用具有参考价值。

Research on bubble number density attenuation model of ship’s bubble wake field
GAO Kexin^1,2, JIN Liang'an^1,2, YUAN Zhijiang^1,2, QIN Ruolin^1,2
1. Dept. of Navigation, PLA Dalian Naval Academy, Dalian 116018, China;
2. Military Navigation Army Key Laboratory, PLA Dalian Naval Academy, Dalian 116018, China
Abstract: In order to explore the number-density attenuation characteristics of bubbles in the wake field of ships, the experimental results of the actual bubble wake field was collected under different propeller rotating speeds in the sea condition of the harbor by high speed camera. The number density attenuation characteristics of bubbles in different propeller rotating speeds in the bubble wake field were analyzed. It is concluded that the bubble number density in the wake field of the ship is exponentially decayed with time, and the maximum number of bubbles can reach 8×10⁵ /m³, and the attenuation is affected by the propeller rotating speed, the faster the speed, the bigger the attenuation. The bubble number density attenuation model considering the propeller speed in the wake field of the ship is constructed, and it’s in good agreement with the experimental results, which indicates the correctness and application value of the model, and is of great significance for the application of microbubble detection in the wake field of the ship and torpedo guidance.
Keywords: ship wake;bubble wake field;number density attenuation;propeller rotating speed
2019, 45(8):61-66  收稿日期: 2019-01-23;收到修改稿日期: 2019-03-26
基金项目:
作者简介: 高可心(1994-),男,辽宁阜新市人,硕士研究生,专业方向为制导与对抗研究
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