| 竖直微槽道内EHD强化饱和沸腾传热研究 |
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| 引用本文： | 秦志胜,罗小平.竖直微槽道内EHD强化饱和沸腾传热研究[J].低温与超导,2010,38(7). |
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| 作者姓名： | 秦志胜 罗小平 |
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| 作者单位： | 华南理工大学机械与汽车工程学院,广州,510640 |
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| 摘 要： | 针对微槽内饱和沸腾汽泡建立了简化模型,并利用COMSOL Mu ltiphysics软件对电场中汽泡动力学特性进行了数值模拟,分析了微槽道内EHD(electrohydro dynam ics)强化沸腾传热机理。实验以去离子水为工质,研究了外加直流电场下两种规格的矩形微细槽道内饱和沸腾传热强化特性,电压在0~28kV内,EHD技术对微细槽道内的饱和沸腾传热有明显的强化效果。
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| 关 键 词： | 微槽道 EHD 饱和沸腾 |
EHD enhanced heat transfer in saturated boiling in vertical micro-channels |
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| Qin Zhicheng,Luo Xiaoping.EHD enhanced heat transfer in saturated boiling in vertical micro-channels[J].Cryogenics and Superconductivity,2010,38(7). |
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| Authors: | Qin Zhicheng Luo Xiaoping |
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| Abstract: | A simplified model was built for bubble in saturated boiling in the micro-channel,the dynamics character of bubble in the electric field was numerically simulated by using COMSOL Multiphysics software,then mechanism of(EHD) electrohydro dynamics to heat transfer enhancement in the micro-channel was analyzed.With deionized water as working fluid,the enhancement character in saturated boiling and heat transfer in two specifications of rectangular micro-channel in external electric field was studied,results indicate that in the 0~28kV,EHD technology can significantly strengthen the heat transfer effect of saturated boiling in the micro-channel. |
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| Keywords: | EHD |
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