Experimental study of cooling efficiency of film cooling with tab

YANG Wei-hua; LI Yong-kang; ZHANG Jing-zhou; MA Guo-feng

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Experimental study of cooling efficiency of film cooling with tab

更新时间：2026-07-07

- Experimental study of cooling efficiency of film cooling with tab
- Vol. 22, Issue 3, (2007)
- 作者机构：
  
  南京航空航天大学能源与动力学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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YANG Wei-hua, LI Yong-kang, ZHANG Jing-zhou, et al. Experimental study of cooling efficiency of film cooling with tab[J]. 2007, 22(3).
DOI：

YANG Wei-hua, LI Yong-kang, ZHANG Jing-zhou, et al. Experimental study of cooling efficiency of film cooling with tab[J]. 2007, 22(3). DOI：

摘要

为了研究突片对气膜冷却的影响规律

设计了3种不同堵塞比的等边三角形突片

并对其对气膜冷却特性的影响规律进行了实验研究.研究结果表明

与无突片的气膜冷却相比

突片的存在提高了气膜冷却效果;冷却效率随吹风比的增加而增大

且沿气流方向冷却效率存在一极大值;当吹风比M<1.5时

冷却效率随吹风比的增加而增大;当M>1.5时

冷却效率随吹风比的增加而减小.

Abstract

In order to study the effect of tab on film cooling

three equilateral triangular test tabs with different blockage ratio were designed

and their effects on heat transfer characteristics of film cooling were experimentally studied.The test results show that the efficiency of film cooling with tab is better than that without tab.The efficiency of film cooling will be increased with the increase in blow ratio

and it has a highest value in the direction of flow.When the blow ratio

the cooling efficiency will be increased with the increase in blow ratio;but when the blow ratio

the cooling efficiency will be decreased with the increase in blow ratio.

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Related Author

CHEN Li-qiang

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YANG Cheng-Feng

ZHANG Jing-zhou

DING Shui-ting

CUI Liang

SUN Ji-ning

TAO Zhi

Related Institution

College of Power and Energy Engineering, Nanjing University of Aeronautics and Astronautics

National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

南京航空航天大学能源与动力学院

哈尔滨工业大学能源科学与工程学院

College of Aeronautics and Astronautics Engineering, Air Force Engineering University

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