电场作用下的气泡受力分析

工程热物理学报 , 2005, 26(z1): 146-148.

1.清华大学航天航空学院,传热强化与过程节能教育部重点实验室,北京,100084

2.清华大学航天航空学院,传热强化与过程节能教育部重点实验室,北京,100084

3.清华大学航天航空学院,传热强化与过程节能教育部重点实验室,北京,100084

基金项目: 国家重点基础研究发展计划(973计划)(G2000026301)

ANALYSIS OF THE ELECTRIC STRESSES ACTING ON A BUBBLE IN ELECTRIC FIELD

本文在蠕动流近似的基础上分析计算了具有不同介电常数工质的气泡在外电场力作用下的受力状况.计算结果表明电场力的水平分力使气泡沿场强方向伸长,并且液体和气体相对介电常数之比越大的工质所受的电场力越大.从而,沸腾换热过程中外加电场对液体和气体相对介电常数比值较大的工质能够产生更大的影响.

[1]	Allen P H G;Karayiannis T G .Electrohydynamic Enhancement of Heat Transfer and Fluid Flow[J].Heat Recovery Systems and CHP,1995,15(05):389-423.
[2]	Yagoobi J S;Bryan J E .Enhancement of Heat Transfer and Mass Transport in Single-Phase and Two-Phase with Electrohydrodynamics[J].Advances in Heat Transfer,1999,33:95-186.
[3]	Mohamed Chaker Zaghdoudi;Monique Lallemand .Study of the behaviour of a bubble in an electric field: steady shape and local fluid motion[J].International Journal of Thermal Sciences,2000(1):39-52.
[4]	张泽瑜;赵钧.电动力学[M].北京:清华大学出版社,1987:33-39.
[5]	Herman C.;Iacona E.;Foldes IB.;Suner G.;Milburn C. .Experimental visualization of bubble formation from an orifice in microgravity in the presence of electric fields[J].Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow,2002(3):396-412.

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