| Helmholtz共振腔强化换热的试验研究 |
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| 引用本文： | 高虹,刘娟芳. Helmholtz共振腔强化换热的试验研究[J]. 工业加热, 2009, 38(3): 43-46 |
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| 作者姓名： | 高虹 刘娟芳 |
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| 作者单位： | 重庆大学动力工程学院,重庆,400044;重庆大学动力工程学院,重庆,400044 |
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| 基金项目： | 重庆市自然科学基金计划项目 |
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| 摘 要： | 为研究脉动流体对强化换热的影响，设计Helmholtz共振腔并分别在加装和不加装共振腔的情况下进行对比试验，发现水流经共振腔后变成了脉动流体，脉动的水经过单管换热器后强化了换热，在一定的共振腔参数的配合下，换热系数提高约10％～40％。
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| 关 键 词： | Helmoholtz共振腔 强化换热 自激振荡 |
Experimental Study of Heat Transfer Enhancement by Using Helmholtz Oscillator |
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| GAO Hong,LIU Juan-fang. Experimental Study of Heat Transfer Enhancement by Using Helmholtz Oscillator[J]. Industrial Heating, 2009, 38(3): 43-46 |
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| Authors: | GAO Hong LIU Juan-fang |
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| Affiliation: | (College of Power Engeering, Chongqing University, Chongqing 400044, China) |
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| Abstract: | The paper is devoted to the investigation of the influence of pulsating fluid on heat transfer enhancement. A self-oscillator was designed and contrastive experiment was performed to test the effect of heat transfer enhancement. Continuous water was successfully transferred into pulsating flow through the oscillator. The pulsating flowing water passes through a single pipe heated electrically and enhances the heat transfer. If the parameters of the oscillator are appropriate, the heat transfer coefficient can increase 10% - 40% in comparing with the normal case when the oscillator was removed. |
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| Keywords: | helmoholtz oscillator heat transfer enhancement self-excited oscillation |
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