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发散冷却与冲击/发散冷却的冷却效率对比

杨谦 林宇震 张弛 许全宏

杨谦, 林宇震, 张弛, 许全宏. 发散冷却与冲击/发散冷却的冷却效率对比[J]. 航空动力学报, 2014, 29(2): 268-276. doi: 10.13224/j.cnki.jasp.2014.02.004
引用本文: 杨谦, 林宇震, 张弛, 许全宏. 发散冷却与冲击/发散冷却的冷却效率对比[J]. 航空动力学报, 2014, 29(2): 268-276. doi: 10.13224/j.cnki.jasp.2014.02.004
YANG Qian, LIN Yu-zhen, ZHANG Chi, XU Quan-hong. Cooling effectiveness comparison between effusion cooling and impingement/effusion cooling[J]. Journal of Aerospace Power, 2014, 29(2): 268-276. doi: 10.13224/j.cnki.jasp.2014.02.004
Citation: YANG Qian, LIN Yu-zhen, ZHANG Chi, XU Quan-hong. Cooling effectiveness comparison between effusion cooling and impingement/effusion cooling[J]. Journal of Aerospace Power, 2014, 29(2): 268-276. doi: 10.13224/j.cnki.jasp.2014.02.004

发散冷却与冲击/发散冷却的冷却效率对比

doi: 10.13224/j.cnki.jasp.2014.02.004

Cooling effectiveness comparison between effusion cooling and impingement/effusion cooling

  • 摘要: 为了得到最佳的冷却结构,在相同冷却气量下对发散孔单层壁与冲击/发散孔双层壁冷却结构的冷却效率进行了试验研究.试验保证相同的发散孔排布规律、热侧与冷侧进气温度、冷却气量、热气量以及热冷侧之间的空气压降,使用红外热像仪对发散孔壁的热侧壁面温度进行测量以得到冷却效率,并对两种结构的冷却效率进行对比分析.试验结果表明:在相同冷却开孔面积、相同冷热气条件下,冲击/发散孔双层壁的冷却效率要比发散孔单层壁大约高30%,这归因于冲击/发散冷却方式存在更高的换热强化能力.

     

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出版历程
  • 收稿日期:  2012-12-28
  • 刊出日期:  2014-02-28

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