Experimental investigation of heat transfer characteristic in turbine casing

ZHANG Shu-hua; ZHANG Li; ZHU Hui-ren; XU Du-chun

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Experimental investigation of heat transfer characteristic in turbine casing

更新时间：2026-07-07

- Experimental investigation of heat transfer characteristic in turbine casing
- Vol. 26, Issue 5, (2011)
- 作者机构：
  
  西北工业大学动力与能源学院,西安,710072
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHANG Shu-hua, ZHANG Li, ZHU Hui-ren, et al. Experimental investigation of heat transfer characteristic in turbine casing[J]. 2011, 26(5).
DOI：

ZHANG Shu-hua, ZHANG Li, ZHU Hui-ren, et al. Experimental investigation of heat transfer characteristic in turbine casing[J]. 2011, 26(5). DOI：

摘要

为了得到涡轮机匣内部壁面的换热规律

用瞬态液晶测量方法对某型涡轮机匣上表面的换热分布进行了全表面测量.机匣具有包括冲击、凹槽、阵列孔抽吸等的复杂结构

实验结果表明

射流冲击是造成上表面传热系数增强的主要因素

在冲击影响区域换热较强

其余区域换热较弱.实验结果对涡轮机匣内部流动换热计算、温度场计算、叶尖间隙控制具有重要的参考价值.

Abstract

The heat transfer coefficient distribution of the turbine casing inner surfaces was studied experimentally by utilizing transient thermochromic liquid crystal technique.The casing investigated is composed of complex structure including impingement hole and dimples.Experiment results show that the jet impingement is a main contributing factor to heat transfer enlargement.The heat transfer coefficient near the exit hole and the impingement region is higher than others.The experiment results are helpful to the calculation of turbine casing temperature field and the control of blade tip clearance.

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Related Institution

Shenyang Engine Research Institute，Aero Engine Corporation of China

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

School of Mechanical Engineering，Nanjing University of Science and Technology

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室

南京工程学院能源与动力工程学院

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