Flow characteristics on a 4-stage low-speed research compressor with a cantilevered stator
| Autor: | Mingmin Zhu, Yuchen Ma, Zhenzhou Ju, Jinfang Teng, Xiaoqing Qiang, Zhong Yang, Lin Fan |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Cantilever Computer science Stator business.industry Aerospace Engineering Stall (fluid mechanics) Leakage flow 02 engineering and technology Aerodynamics Structural engineering 01 natural sciences 010305 fluids & plasmas law.invention 020901 industrial engineering & automation Low speed law 0103 physical sciences business Gas compressor |
| Zdroj: | Aerospace Science and Technology. 105:106033 |
| ISSN: | 1270-9638 |
| DOI: | 10.1016/j.ast.2020.106033 |
| Popis: | This paper presents the experimental and numerical investigation of flow characteristics on the highly loaded 4-stage low-speed research compressor (LSRC) with a Cantilevered Stator of Shanghai Jiao Tong University. A new three-dimensional design for the cantilevered stator in the LSRC was derived using an asymmetrical circumferential bow, and the cantilevered stator near the hub adopted the fore-loading design. The unsteady Reynolds averaged Navier-Stokes (URANS) numerical results were compared with experimental data and the differences were introduced. The evolution of the hub leakage flow at the near stall (NS) operating condition compared with the design point (DP) was analyzed, and design suggestions were provided for the two operating conditions. The present study details the effects of the hub leakage flow on the highly loaded LSRC, and provides some quantified data between the aerodynamic performance and hub leakage flow. Designers needing to better understand the hub leakage flow of a cantilevered stator in a multi-stage compressor will benefit from this paper. |
| Databáze: | OpenAIRE |
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