Analysis and improvement of negative pre-swirl recirculation casing treatment in a centrifugal compressor
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Hong-ze Jin
und
Xue-guang Liu
Abstract
To address the limited stable operating range of transonic centrifugal compressors, parametric analyses of negative pre-swirl recirculation casing treatment (RCT) were conducted using ANSYS CFX. The effects of the negative pre-swirl vane (NPS-vane) exit angle and slot width were examined, and a dual-RCT configuration was developed. Results indicate that adjusting the NPS-vane exit angle extends the operating mass flow rate range by up to 8.7 % and restores the peak pressure ratio to the smooth-wall compressor (SW) level, though with a slight efficiency penalty. Reducing slot width effectively alleviates passage blockage, improving the mass flow rate range by 4 % and increasing the peak pressure ratio by 1 % without efficiency loss. Compared with the single-RCT, the dual-RCT further suppresses downstream blockage and enhances both mass flow rate range and peak pressure ratio. These results demonstrate that RCT optimization and dual-RCT design provide a practical strategy to extend compressor stability with minimal impact on efficiency.
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Research ethics: Not applicable.
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Informed consent: Informed consent was obtained from all individuals included in this study, or their legal guardians or wards.
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Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The author states no conflict of interest.
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Research funding: None declared.
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Data availability: Not applicable.
References
1. Fisher, FB. Application of map width enhancement devices to turbocharger compressor stages. SAE Tech Pap 1988;880794. https://doi.org/10.4271/880794.Suche in Google Scholar
2. Zheng, X, Zhang, Y, Yang, M, Bamba, T, Tamaki, H. Stability improvement of high-pressure-ratio turbocharger centrifugal compressor by asymmetrical flow control – part II: nonaxisymmetrical self-recirculation casing treatment. ASME J Turbomach 2013;135:021007. https://doi.org/10.1115/1.4006637.Suche in Google Scholar PubMed PubMed Central
3. Qu, F. Research on the stall mechanism of centrifugal compressor and optimization design of the self-recirculating casing treatment [Ph.D. thesis]. Harbin: Harbin Eng. Univ.; 2023.Suche in Google Scholar
4. Tamaki, H. Effect of recirculation device on performance of high pressure ratio centrifugal compressor. In: Proc. ASME turbo expo 2010: power for land, sea, and air, vol. 7, turbomachinery, parts, A, and C. Glasgow, UK: ASME; 2010:1879–89 pp.10.1115/GT2010-22570Suche in Google Scholar
5. Liu, XG, Jin, HZ. Effect of different bleed slot positions and negative pre-swirl vanes on the performance of centrifugal compressor with recirculation casing treatment. Phys Fluids 2025;37:026124. https://doi.org/10.1063/5.0252377.Suche in Google Scholar
6. Sivagnanasundaram, S, Spence, S, Early, J, Nikpour, B. An impact of various shroud bleed slot configurations and cavity vanes on compressor map width and the inducer flow field. ASME J Turbomach 2013;135:041003. https://doi.org/10.1115/1.4007513.Suche in Google Scholar
7. Sivagnanasundaram, S, Spence, S, Early, J. Map width enhancement technique for a turbocharger compressor. ASME J Turbomach 2014;136:061002. https://doi.org/10.1115/1.4007895.Suche in Google Scholar
8. Park, C, Choi, Y, Lee, K. Numerical study on the range enhancement of a centrifugal compressor with a ring slot system. In: Proc. ASME-JSME-KSME joint fluids eng. conf., vol. 1, symposia – parts A, and D. Hamamatsu, Japan: ASME; 2011:587–94 pp.10.1115/AJK2011-22014Suche in Google Scholar
9. Chen, H, Lei, V. Casing treatment and inlet swirl of centrifugal compressors. ASME J Turbomach 2013;135:041010. https://doi.org/10.1115/1.4007739.Suche in Google Scholar
10. Tamaki, H. Effect of recirculation device with counter swirl vane on performance of high pressure ratio centrifugal compressor. ASME J Turbomach 2012;134:051036. https://doi.org/10.1115/1.4004820.Suche in Google Scholar
11. Yamaguchi, S. The development of effective casing treatment for turbocharger compressors. In: Proc. 7th international conference on turbochargers and turbocharging. Professional Engineering Publishing Ltd, London, UK; 2002:23–32 pp.Suche in Google Scholar
12. Christou, GA, Tan, CS, Sirakov, BT, Lei, VM, Alescio, G. Characterizing flow effects of ported shroud casing treatment on centrifugal compressor performance. ASME J Turbomach 2017;139:081005. https://doi.org/10.1115/1.4035664.Suche in Google Scholar
13. Tian, H, Hou, K, Tong, D. Stabilizing flow characteristics of a centrifugal compressor with vane casing treatment. Trans CSICE (Chin Soc Intern Combust Engines) 2023;41:361–8.Suche in Google Scholar
14. Koch, CC, Smith, LHJr.. Loss sources and magnitudes in axial-flow compressors. ASME J Eng Power 1976;98:411–24. https://doi.org/10.1115/1.3446202.Suche in Google Scholar
15. Celik, IB, Ghia, U, Roache, PJ. Procedure for estimation and reporting of uncertainty due to discretization in CFD applications. ASME J Fluids Eng 2008;130:078001.10.1115/1.2960953Suche in Google Scholar
16. Romei, A, Gaetani, P, Persico, G. Computational fluid-dynamic investigation of a centrifugal compressor with inlet guide vanes for supercritical carbon dioxide power systems. Energy 2022;255:124469. https://doi.org/10.1016/j.energy.2022.124469.Suche in Google Scholar
17. Yan, S, Chu, W. Effect of self-circulating treatment casing on rotor performance at different speeds. J Aero Power 2019;34:2516–28.Suche in Google Scholar
18. Kock, F, Herwig, H. Local entropy production in turbulent shear flows: a high-Reynolds number model with wall functions. Int J Heat Mass Tran 2004;47:2205–15. https://doi.org/10.1016/j.ijheatmasstransfer.2003.11.025.Suche in Google Scholar
19. Kock, F, Herwig, H. Entropy production calculation for turbulent shear flows and their implementation in CFD codes. Int J Heat Fluid Flow 2005;26:672–80. https://doi.org/10.1016/j.ijheatfluidflow.2005.03.005.Suche in Google Scholar
20. Li, Z, Du, J, Li, F. Accuracy comparison of two entropy generation rate models based on the RANS/LES method. J Eng Thermophys 2018;39:1899–904.Suche in Google Scholar
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