This paper has experimentally and numerically studied the windage heating in a shrouded rotor-stator disk system with superimposed flow. Temperature rise in the radius direction on the rotating disk is linked to the viscous heating process when cooling air flows through the rotating component. A test rig has been developed to investigate the effect of flow parameters and the gap ratio on the windage heating, respectively. Experimental results were obtained from a 0.45 m diameter disk rotating at up to 12,000 rpm with gap ratio varying from 0.02 to 0.18 and a stator of the same diameter. Infrared temperature measurement technology has been proposed to measure the temperature rise on the rotor surface directly. The PIV technique was adapted to allow for tangential velocity measurements. The tangential velocity data along the radial direction in the cavity was compared with the results obtained by CFD simulation. The comparison between the free disk temperature rise data and an associated theoretical analysis for the windage heating indicates that the adiabatic disk temperature can be measured by infrared method accurately. For the small value of turbulence parameter, the gap ratio has limited influence on the temperature rise distribution along the radius. As turbulence parameter increases, the temperature rise difference is independent of the gap ratio, leaving that as a function of rotational Reynolds number and throughflow Reynolds number only. The PIV results show that the swirl ratio of the rotating core between the rotor and the stator has a key influence on the windage heating.
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June 2014
Research-Article
Windage Heating in a Shrouded Rotor-Stator System
Zhi Tao,
Zhi Tao
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: tao_zhi@buaa.edu.cn
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: tao_zhi@buaa.edu.cn
Search for other works by this author on:
Da Zhang,
Da Zhang
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: zhangdamail@gmail.com
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: zhangdamail@gmail.com
Search for other works by this author on:
Xiang Luo,
Xiang Luo
1
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: xiang.luo@buaa.edu.cn
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: xiang.luo@buaa.edu.cn
1Corresponding author.
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Guoqiang Xu,
Guoqiang Xu
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: guoqiang_xu@buaa.edu.cn
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: guoqiang_xu@buaa.edu.cn
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Jianqiao Han
Jianqiao Han
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: 777aaas@sina.com
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: 777aaas@sina.com
Search for other works by this author on:
Zhi Tao
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: tao_zhi@buaa.edu.cn
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: tao_zhi@buaa.edu.cn
Da Zhang
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: zhangdamail@gmail.com
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: zhangdamail@gmail.com
Xiang Luo
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: xiang.luo@buaa.edu.cn
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: xiang.luo@buaa.edu.cn
Guoqiang Xu
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: guoqiang_xu@buaa.edu.cn
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: guoqiang_xu@buaa.edu.cn
Jianqiao Han
National Key Laboratory of Science
and Technology on Aero-Engine
Aero-Thermodynamics,
e-mail: 777aaas@sina.com
and Technology on Aero-Engine
Aero-Thermodynamics,
Beihang University
,37# Xueyuan Road, Haidian District
,Beijing 100191
, China
e-mail: 777aaas@sina.com
1Corresponding author.
Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received December 8, 2013; final manuscript received January 2, 2014; published online February 4, 2014. Editor: David Wisler.
J. Eng. Gas Turbines Power. Jun 2014, 136(6): 062602 (10 pages)
Published Online: February 4, 2014
Article history
Received:
December 8, 2013
Revision Received:
January 2, 2014
Citation
Tao, Z., Zhang, D., Luo, X., Xu, G., and Han, J. (February 4, 2014). "Windage Heating in a Shrouded Rotor-Stator System." ASME. J. Eng. Gas Turbines Power. June 2014; 136(6): 062602. https://doi.org/10.1115/1.4026429
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