Numerical and experimental investigations of tip clearance effects in a high-flow-coefficient centrifugal compressor-Reference-Cited by-同舟云学术

Numerical and experimental investigations of tip clearance effects in a high-flow-coefficient centrifugal compressor

Published:2022-03-28 Issue:0 Volume:0 Page:
ISSN:0334-0082
Container-title:International Journal of Turbo & Jet-Engines
language:en
Short-container-title:

Author:

Zhao Chenxi¹,Yang Changling¹,Zhang Chenqing¹,Zhang Xiaotian¹,Xi Guang¹

Affiliation:

1. School of Energy and Power Engineering , Xi’an Jiaotong University , Xi’an 710049 , Shaanxi , China

Abstract

Abstract This paper focuses on the investigation of the blade deformation and tip clearance effects of a high-flow-coefficient centrifugal compressor. Blade deformation caused by the pressure load and centrifugal load under operating condition is considered by fluid/solid interaction method to simulate the stage performance accurately. Hence the numerical results are in good agreement with the experimental data. The blade deformation is then analyzed in detail. Also, the effect of the size of tip clearance is studied by evaluating the performance with five various gaps. The result shows that the increment of the tip clearance from 0 to 2.0 mm leads to a 5.14% peak efficiency decline. However, increasing tip gap contributes to enlarge the stable operating range in terms of stall margin and choke margin.

Publisher

Walter de Gruyter GmbH

Subject

Aerospace Engineering

Link

https://www.degruyter.com/document/doi/10.1515/tjj-2022-0002/pdf

Reference26 articles.

1. Wittrock, D, Reutter, O, Nicke, E, Schmidt, T, Klausmann, J. Design of a transonic high flow coefficient centrifugal compressor by using advanced design methods. Am Soc Mech Eng (ASME) 2018;51005:V02BT44A002. https://doi.org/10.1115/GT2018-75024.

2. Franz, H, Rube, C, Wedeking, M, Jeschke, P. Numerical investigation of the return channel of a high-flow centrifugal compressor stage. Am Soc Mech Eng (ASME) 2015;56659:V02CT42A034. https://doi.org/10.1115/GT2015-43640.

3. Wang, Y, Wang, K, Lin, F, Nie, C, Engeda, A. Performance analysis and improvement of a high flow coefficient centrifugal compressor. Sci China Technol Sci 2014;57:1647–57. https://doi.org/10.1007/s11431-014-5557-6.

4. Shibata, T, Yagi, M, Nishida, H, Kobayashi, H, Tanaka, MX. Performance improvement of a centrifugal compressor stage by increasing degree of reaction and optimizing blade loading of a 3D impeller. J Turbomach 2011;133:021004. https://doi.org/10.1115/1.4000565.

5. Zhao, PF, Liu, Y, Li, HK, Wang, XF, Yang, JG. The effect of impeller–diffuser interactions on diffuser performance in a centrifugal compressor. Eng Appl Comput Fluid Mech 2016;10:565–77. https://doi.org/10.1080/19942060.2016.1210028.