| 受限浸没射流阵列冲击针肋热沉的传热特性 |
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| 引用本文： | 杨瑞波,夏国栋,柴磊.受限浸没射流阵列冲击针肋热沉的传热特性[J].航空动力学报,2010,25(12):2795-2801. |
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| 作者姓名： | 杨瑞波 夏国栋 柴磊 |
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| 作者单位： | 北京工业大学环境与能源工程学院传热强化与过程节能教育部重点实验室,传热与能源利用北京市重点实验室,北京,100124 |
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| 基金项目： | 国家自然科学基金(50876003); 北京市自然科学基金(3092009) |
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| 摘 要： | 以去离子水为工质,对受限浸没射流阵列冲击矩形针肋热沉的传热特性进行了实验研究.讨论了热沉几何参数和射流雷诺数对传热特性的影响规律.结果表明:针肋高度直接影响换热能力,但并非越高越好;热沉传热特性受针肋宽度与肋间距影响较大,Nu在0.625≤W/G≤1.000内呈塔型分布;Nu在2.5≤H/d≤10.0之间不断下降;S/d在3.00~4.50之间,Nu随S/d的增大单调递增,但Re增大到4 000后,换热性能与S/d基本无关;S/d在4.50~7.00之间,Nu随S/d的增大单调递减;热沉的热阻随泵功的增大而降低,但变化渐趋平缓.
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| 关 键 词： | 受限射流 射流阵列 肋化表面 对流热阻 强化传热 |
| 收稿时间： | 2009/11/7 0:00:00 |
| 修稿时间： | 2010/3/30 0:00:00 |
Investigation on heat transfer of confined and submerged water jet array impingement on pin-fin heat sinks |
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| YANG Rui-bo,XIA Guo-dong and CHAI Lei.Investigation on heat transfer of confined and submerged water jet array impingement on pin-fin heat sinks[J].Journal of Aerospace Power,2010,25(12):2795-2801. |
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| Authors: | YANG Rui-bo XIA Guo-dong and CHAI Lei |
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| Institution: | Key Laboratory of Heat Transfer and Energy Conversion, Beijing Education Commission, Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education,College of Environmental and Energy Engineering, Beijing University of Technology,Beijing 100124,China;Key Laboratory of Heat Transfer and Energy Conversion, Beijing Education Commission, Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education,College of Environmental and Energy Engineering, Beijing University of Technology,Beijing 100124,China;Key Laboratory of Heat Transfer and Energy Conversion, Beijing Education Commission, Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education,College of Environmental and Energy Engineering, Beijing University of Technology,Beijing 100124,China |
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| Abstract: | |
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| Keywords: | confined jet jet array pin-fin surface thermal resistance |
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