Interaction Between Mixing Flow and Slot Film of a Combustor

Meng Xiangtai; Liu Gaoen

Chinese

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Interaction Between Mixing Flow and Slot Film of a Combustor

更新时间：2026-07-07

- Interaction Between Mixing Flow and Slot Film of a Combustor
- Vol. 15, Issue 1, (2000)
- 作者机构：
  
  北京航空航天大学四系,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2000
- 稿件说明：
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Meng Xiangtai, Liu Gaoen. Interaction Between Mixing Flow and Slot Film of a Combustor[J]. 2000, 15(1).
DOI：

Meng Xiangtai, Liu Gaoen. Interaction Between Mixing Flow and Slot Film of a Combustor[J]. 2000, 15(1). DOI：

摘要

对缝槽气膜冷却在不同吹风比情况下的气膜冷却效率采用CO2传热传质类比方法进行了试验研究。根据湍流混合模型及气膜效率试验数据归纳了计算缝槽气膜冷却气膜效率的经验关系式。在此基础上

采用相同试验方法进行了掺混气流与气膜相互作用的初步研究

明确了掺混气流对其下游区域气膜的干扰作用。

Abstract

The experimental investigation on slot film cooling effectiveness was conducted with different blowing rates of the sample gas—CO2

by using Heat-Mass Transfer Analogy method.The empiric formulas for calculating slot film cooling effectiveness were derived from the test data according to the turbulence-mixing model.The same experiment was also conducted with the mixing jet flow normal to the wall

and the disturbing action on film cooling downstream of the jet flow was determined.The results showed a great difference between the effects of different mixing flows on the film cooling.

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Related Author

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Fang Ren

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Li Bing

Liu Gaoen

Related Institution

Thermal Power Institution,Beijing University of Aeronautics and Astronautics

th Dept.Beijing University of Aeronautics and Astronautics

中国航天科技集团有限公司航天推进技术研究院北京航天试验技术研究所

中国航天科技集团有限公司航天推进技术研究院北京市航天动力试验技术与装备工程技术研究中心

华北电力大学能源动力与机械工程学院低品位能源多相流与传热北京市重点实验室

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