高温大气泡群对艉流的聚并作用机理

doi:10.12034/j.issn.1009-606X.216380

过程工程学报 ›› 2017, Vol. 17 ›› Issue (5): 952-958.DOI: 10.12034/j.issn.1009-606X.216380CSTR: 32067.14.jproeng.216380

高温大气泡群对艉流的聚并作用机理

张志友，金良安^*，苑志江, 何升阳

海军大连舰艇学院航海系，辽宁大连 116018

收稿日期:2016-12-26 修回日期:2017-03-14 出版日期:2017-10-20 发布日期:2017-10-10
通讯作者: 张志友 zhiyou626@163.com
基金资助:
海军国防预研课题“水面舰艇隐身技术”

Coalescence Mechanism of Thermal Bubbles Movement on Warship Wake

Zhiyou ZHANG, Liang'an JIN^*, Zhijiang YUAN, Shengyang HE

Department of Navigation, Dalian Naval Academy, Dalian, Liaoning 116018, China

Received:2016-12-26 Revised:2017-03-14 Online:2017-10-20 Published:2017-10-10

摘要/Abstract

摘要： 在气泡群平衡方程模型的基础上，根据高温尾气在海水中形成的气泡群特点及气液间特定的传热传质过程，建立了高温大气泡群对尾流微气泡的聚并模型，求解了气泡间聚并效率并进行实验验证. 结果表明，气泡聚并临界半径为1 mm，半径低于临界半径时，聚并效率随大气泡尺寸增加明显提高；气泡半径高于临界半径时，规律相反. 聚并效率随大气泡数密度增大呈台阶式增长. 大气泡数密度与尾流微气泡总数密度大致相同时，可达到较理想的聚并消泡效果.

关键词: 舰船尾流, 聚并, 气泡运动, 运动模型

Abstract: According to the characteristics of gas thermal bubbling in the sea, along with the gas?liquid mass and heat transfer process, the coalescence model of thermal bubbles and wake microbubbles was set up on the basis of bubble population balance equation model. Corresponding coalescence efficiency was solved and validated by relevant experiment. The results showed that 1 mm was the bubbles coalescence critical radius. The coalescence efficiency increases obviously with the increasing of radius below critical radius. When the radius is bigger than the critical radius, it had a reverse rule. The coalescence efficiency increased stepwise as the increasing of big bubbles numerical density. When the big bubbles numerical density was equal with microbubbles, the effect of defoaming efficiency was well.

Key words: warship wake, coalescence, bubble motion, motion model

张志友金良安苑志江何升阳. 高温大气泡群对艉流的聚并作用机理[J]. 过程工程学报, 2017, 17(5): 952-958.

Zhiyou ZHANG Liang'an JIN Zhijiang YUAN Shengyang HE. Coalescence Mechanism of Thermal Bubbles Movement on Warship Wake[J]. Chin. J. Process Eng., 2017, 17(5): 952-958.

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高温大气泡群对艉流的聚并作用机理

Coalescence Mechanism of Thermal Bubbles Movement on Warship Wake

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