In this article a combined experimental and numerical investigation of the unsteady mixing flow of the ingestion gas and rim sealing air inside a rotating disk cavity was carried out. A new test rig was set up, and the experiments were conducted on a 1.5-stage turbine rotor disk and included pressure measurements. The flow structure of the mixing region of the ingestion gas and sealing air in cavity was measured using the particle image velocimetry (PIV) technique. To complement the experimental investigation and to aid in understanding the flow mechanism within the cavity, a three-dimensional (3D) unsteady computational fluid dynamic (CFD) analysis was undertaken. Both simulated and experimental results indicated that near the rotating disk, (i) a large amount of the ingestion gas will turn around and flow out the cavity due to the impact of the centrifugal force and the Coriolis force, (ii) a small amount of ingestion gas will mix transiently with the sealing air inside the cavity, whereas near the static disk, (iii) the ingestion gas will flow into the cavity along the static wall and mix with the sealing air.
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November 2014
Research-Article
Particle Image Velocimetry Measurement and Computational Fluid Dynamic Simulations of the Unsteady Flow Within a Rotating Disk Cavity
Xiang Luo,
Xiang Luo
1
National Key Laboratory of Science and
Technology on Aero-Engine Aero-Thermodynamics,
e-mail: xiang.luo@buaa.edu.cn
Technology on Aero-Engine Aero-Thermodynamics,
Beihang University
,Haidian District
,Beijing 100191
, China
e-mail: xiang.luo@buaa.edu.cn
1Corresponding authors.
Search for other works by this author on:
Dongdong Liu,
Dongdong Liu
National Key Laboratory of Science and
Technology on Aero-Engine Aero-Thermodynamics,
e-mail: liudongdongbuaa@gmail.com
Technology on Aero-Engine Aero-Thermodynamics,
Beihang University
,Haidian District
,Beijing 100191
, China
e-mail: liudongdongbuaa@gmail.com
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Hongwei Wu,
Hongwei Wu
1
Institute of Engineering and Energy Technologies,
School of Engineering,
e-mail: hongwei.wu@uws.ac.uk
School of Engineering,
University of the West of Scotland
,Paisley PA1 2BE
, UK
e-mail: hongwei.wu@uws.ac.uk
1Corresponding authors.
Search for other works by this author on:
Zhi Tao
Zhi Tao
National Key Laboratory of Science and
Technology on Aero-Engine Aero-Thermodynamics,
e-mail: tao_zhi@buaa.edu.cn
Technology on Aero-Engine Aero-Thermodynamics,
Beihang University
,Haidian District
,Beijing 100191
, China
e-mail: tao_zhi@buaa.edu.cn
Search for other works by this author on:
Xiang Luo
National Key Laboratory of Science and
Technology on Aero-Engine Aero-Thermodynamics,
e-mail: xiang.luo@buaa.edu.cn
Technology on Aero-Engine Aero-Thermodynamics,
Beihang University
,Haidian District
,Beijing 100191
, China
e-mail: xiang.luo@buaa.edu.cn
Dongdong Liu
National Key Laboratory of Science and
Technology on Aero-Engine Aero-Thermodynamics,
e-mail: liudongdongbuaa@gmail.com
Technology on Aero-Engine Aero-Thermodynamics,
Beihang University
,Haidian District
,Beijing 100191
, China
e-mail: liudongdongbuaa@gmail.com
Hongwei Wu
Institute of Engineering and Energy Technologies,
School of Engineering,
e-mail: hongwei.wu@uws.ac.uk
School of Engineering,
University of the West of Scotland
,Paisley PA1 2BE
, UK
e-mail: hongwei.wu@uws.ac.uk
Zhi Tao
National Key Laboratory of Science and
Technology on Aero-Engine Aero-Thermodynamics,
e-mail: tao_zhi@buaa.edu.cn
Technology on Aero-Engine Aero-Thermodynamics,
Beihang University
,Haidian District
,Beijing 100191
, China
e-mail: tao_zhi@buaa.edu.cn
1Corresponding authors.
Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received March 16, 2014; final manuscript received April 12, 2014; published online May 16, 2014. Editor: David Wisler.
J. Eng. Gas Turbines Power. Nov 2014, 136(11): 112601 (6 pages)
Published Online: May 16, 2014
Article history
Received:
March 16, 2014
Revision Received:
April 12, 2014
Citation
Luo, X., Liu, D., Wu, H., and Tao, Z. (May 16, 2014). "Particle Image Velocimetry Measurement and Computational Fluid Dynamic Simulations of the Unsteady Flow Within a Rotating Disk Cavity." ASME. J. Eng. Gas Turbines Power. November 2014; 136(11): 112601. https://doi.org/10.1115/1.4027568
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