| 席壁冷却结构的无因次温差比η和θ的实验研究 |
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| 引用本文： | 何立明,李长林,吴二平.席壁冷却结构的无因次温差比η和θ的实验研究[J].航空学报,1996,17(1):18-23. |
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| 作者姓名： | 何立明 李长林 吴二平 |
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| 作者单位： | 空军工程学院一系，西北工业大学七研 |
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| 摘 要： | 对席壁冷却结构的平板实验件进行热态实验研究，测定反映该冷却结构冷却效果的两个无因次温差比η和θ的大小随冷却密流ｍａｎ／Ａ平板的变化规律，一方面以检验本席壁结构的冷却效果，另一方面为七热流壁温计算提供支持
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| 关 键 词： | 席壁冷却结构 无因次温差比 实验研究 冷却效果 |
EXPERIMENTAL INVESTIGATIONS ON DIMENSIONLESS TEM PERATURE DIFFERENCE RATIO η AND θ OF MAT-WALL COOLING STRUCTURE |
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| He Liming.EXPERIMENTAL INVESTIGATIONS ON DIMENSIONLESS TEM PERATURE DIFFERENCE RATIO η AND θ OF MAT-WALL COOLING STRUCTURE[J].Acta Aeronautica et Astronautica Sinica,1996,17(1):18-23. |
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| Authors: | He Liming |
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| Institution: | 1. Department 7 of Northwestern Polytechnical University, Xi'an, 710072;2. Department 1 of Air For ce Engineering College, Xican, 710038 |
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| Abstract: | The values of the dimensionless temperature difference ratio η and θ depend on the thermal conductivity of multiple-duct wall,coolant mass flow per unit surface area and geometrical structure of the multiple-hole base.The values of η and θ demonstrate the cooling effect of a cooling structure to a certain extent. Hot state experimental investigation on a piece of experimental plate of mat-wall cooling structure has been done,and the values of η and θ and their variation with the cooling density flow that display the cooling effect of the cooling structure have been determined. The cooling effect of the mat-wall structure can be examined, which can offer support for seven-heat-flow wall temperature calculation. |
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| Keywords: | mat-wall cooling structure dimensionless temperature difference ratio experimental investigation cooling effect |
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