IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v185y2022icp1343-1361.html
   My bibliography  Save this article

Unstable flow characteristics in vaneless region with emphasis on the rotor-stator interaction for a pump turbine at pump mode using large runner blade lean

Author

Listed:
  • Ye, Weixiang
  • Geng, Chen
  • Luo, Xianwu

Abstract

In this study, the unstable flow characteristics in vaneless region of the pump-turbine with different runner blade lean has been numerically investigated by using a modified SST k-ω partially averaged Navier-Stokes model. Results on the characteristic curves show good agreements between the experiment and simulation, and indicate that with the increase of blade lean angle (θ of 0°, 2°, 4°, 6°, 10° and 15°), the positive slope on characteristic curve is gradually alleviated. It is noted that the runner with large blade lean (θ of 15°) can suppress the peak value region of boundary vorticity flux at blade trailing edge from the crown side to mid-span section, and the unstable flow near the mid-span in runner blade-to-blade passage as well as in vaneless region. It is confirmed that the runner with large blade lean spatially and temporally changes the flow near the blade trailing edge and in vaneless region, and is beneficial to improve the flow stability. Finally, the proper orthogonal decomposition analysis reveals that the runner model with large blade lean effectively alleviates the dominant flow oscillation with the low frequency of 0.088fn (or 0.044fn), corresponding to the unstable flow evolution in vaneless region.

Suggested Citation

  • Ye, Weixiang & Geng, Chen & Luo, Xianwu, 2022. "Unstable flow characteristics in vaneless region with emphasis on the rotor-stator interaction for a pump turbine at pump mode using large runner blade lean," Renewable Energy, Elsevier, vol. 185(C), pages 1343-1361.
    • Handle: RePEc:eee:renene:v:185:y:2022:i:c:p:1343-1361
    DOI: 10.1016/j.renene.2021.12.129
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148121018577
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2021.12.129?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Li, Deyou & Zuo, Zhigang & Wang, Hongjie & Liu, Shuhong & Wei, Xianzhu & Qin, Daqing, 2019. "Review of positive slopes on pump performance characteristics of pump-turbines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 112(C), pages 901-916.
    2. Liu, Ming & Tan, Lei & Cao, Shuliang, 2019. "Dynamic mode decomposition of cavitating flow around ALE 15 hydrofoil," Renewable Energy, Elsevier, vol. 139(C), pages 214-227.
    3. Ye, Weixiang & Ikuta, Akihiro & Chen, Yining & Miyagawa, Kazuyoshi & Luo, Xianwu, 2020. "Numerical simulation on role of the rotating stall on the hump characteristic in a mixed flow pump using modified partially averaged Navier-Stokes model," Renewable Energy, Elsevier, vol. 166(C), pages 91-107.
    4. Ji, Leilei & Li, Wei & Shi, Weidong & Tian, Fei & Agarwal, Ramesh, 2021. "Effect of blade thickness on rotating stall of mixed-flow pump using entropy generation analysis," Energy, Elsevier, vol. 236(C).
    5. Ji, Leilei & Li, Wei & Shi, Weidong & Chang, Hao & Yang, Zhenyu, 2020. "Energy characteristics of mixed-flow pump under different tip clearances based on entropy production analysis," Energy, Elsevier, vol. 199(C).
    6. Li, Deyou & Wang, Hongjie & Qin, Yonglin & Wei, Xianzhu & Qin, Daqing, 2018. "Numerical simulation of hysteresis characteristic in the hump region of a pump-turbine model," Renewable Energy, Elsevier, vol. 115(C), pages 433-447.
    7. Kandi, Ali & Moghimi, Mahdi & Tahani, Mojtaba & Derakhshan, Shahram, 2021. "Optimization of pump selection for running as turbine and performance analysis within the regulation schemes," Energy, Elsevier, vol. 217(C).
    8. Ye, Weixiang & Ikuta, Akihiro & Chen, Yining & Miyagawa, Kazuyoshi & Luo, Xianwu, 2021. "Investigation on the effect of forward skew angle blade on the hump characteristic in a mixed flow pump using modified partially averaged Navier-Stokes model," Renewable Energy, Elsevier, vol. 170(C), pages 118-132.
    9. Yu, An & Zou, Zhipeng & Zhou, Daqing & Zheng, Yuan & Luo, Xianwu, 2020. "Investigation of the correlation mechanism between cavitation rope behavior and pressure fluctuations in a hydraulic turbine," Renewable Energy, Elsevier, vol. 147(P1), pages 1199-1208.
    10. Luo, Xianwu & Ye, Weixiang & Huang, Renfang & Wang, Yiwei & Du, Tezhuan & Huang, Chenguang, 2020. "Numerical investigations of the energy performance and pressure fluctuations for a waterjet pump in a non-uniform inflow," Renewable Energy, Elsevier, vol. 153(C), pages 1042-1052.
    11. Li, Wei & Li, Enda & Ji, Leilei & Zhou, Ling & Shi, Weidong & Zhu, Yong, 2020. "Mechanism and propagation characteristics of rotating stall in a mixed-flow pump," Renewable Energy, Elsevier, vol. 153(C), pages 74-92.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Kim, Seung-Jun & Yang, Hyeon-Mo & Park, Jungwan & Kim, Jin-Hyuk, 2022. "Investigation of internal flow characteristics by a Thoma number in the turbine mode of a Pump–Turbine model under high flow rate," Renewable Energy, Elsevier, vol. 199(C), pages 445-461.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Ji, Leilei & Li, Wei & Shi, Weidong & Tian, Fei & Agarwal, Ramesh, 2021. "Effect of blade thickness on rotating stall of mixed-flow pump using entropy generation analysis," Energy, Elsevier, vol. 236(C).
    2. Yang, Gang & Shen, Xi & Shi, Lei & Zhang, Desheng & Zhao, Xutao & (Bart) van Esch, B.P.M., 2023. "Numerical investigation of hump characteristic improvement in a large vertical centrifugal pump with special emphasis on energy loss mechanism," Energy, Elsevier, vol. 273(C).
    3. Ye, Weixiang & Ikuta, Akihiro & Chen, Yining & Miyagawa, Kazuyoshi & Luo, Xianwu, 2020. "Numerical simulation on role of the rotating stall on the hump characteristic in a mixed flow pump using modified partially averaged Navier-Stokes model," Renewable Energy, Elsevier, vol. 166(C), pages 91-107.
    4. Li, Wei & Long, Yu & Ji, Leilei & Li, Haoming & Li, Shuo & Chen, Yunfei & Yang, Qiaoyue, 2024. "Effect of circumferential spokes on the rotating stall flow field of mixed-flow pump," Energy, Elsevier, vol. 290(C).
    5. Li, Wei & Yang, Qiaoyue & Yang, Yi & Ji, Leilei & Shi, Weidong & Agarwal, Ramesh, 2024. "Optimization of pump transient energy characteristics based on response surface optimization model and computational fluid dynamics," Applied Energy, Elsevier, vol. 362(C).
    6. Sun, Longyue & Pan, Qiang & Zhang, Desheng & Zhao, Ruijie & Esch, B.P.M.(Bart) van, 2022. "Numerical study of the energy loss in the bulb tubular pump system focusing on the off-design conditions based on combined energy analysis methods," Energy, Elsevier, vol. 258(C).
    7. Li, Wei & Huang, Yuxin & Ji, Leilei & Ma, Lingling & Agarwal, Ramesh K. & Awais, Muhammad, 2023. "Prediction model for energy conversion characteristics during transient processes in a mixed-flow pump," Energy, Elsevier, vol. 271(C).
    8. Xu, Lianchen & Kan, Kan & Zheng, Yuan & Liu, Demin & Binama, Maxime & Xu, Zhe & Yan, Xiaotong & Guo, Mengqi & Chen, Huixiang, 2024. "Rotating stall mechanism of pump-turbine in hump region: An insight into vortex evolution," Energy, Elsevier, vol. 292(C).
    9. Zhou, Ling & Hang, Jianwei & Bai, Ling & Krzemianowski, Zbigniew & El-Emam, Mahmoud A. & Yasser, Eman & Agarwal, Ramesh, 2022. "Application of entropy production theory for energy losses and other investigation in pumps and turbines: A review," Applied Energy, Elsevier, vol. 318(C).
    10. Zhao, Ziwen & Yuan, Yichen & He, Mengjiao & Jurasz, Jakub & Wang, Jianan & Egusquiza, Mònica & Egusquiza, Eduard & Xu, Beibei & Chen, Diyi, 2022. "Stability and efficiency performance of pumped hydro energy storage system for higher flexibility," Renewable Energy, Elsevier, vol. 199(C), pages 1482-1494.
    11. Lin, Tong & Zhu, Zuchao & Li, Xiaojun & Li, Jian & Lin, Yanpi, 2021. "Theoretical, experimental, and numerical methods to predict the best efficiency point of centrifugal pump as turbine," Renewable Energy, Elsevier, vol. 168(C), pages 31-44.
    12. Mu, Tong & Zhang, Rui & Xu, Hui & Fei, Zhaodan & Feng, Jiangang & Jin, Yan & Zheng, Yuan, 2023. "Improvement of energy performance of the axial-flow pump by groove flow control technology based on the entropy theory," Energy, Elsevier, vol. 274(C).
    13. Kan, Kan & Binama, Maxime & Chen, Huixiang & Zheng, Yuan & Zhou, Daqing & Su, Wentao & Muhirwa, Alexis, 2022. "Pump as turbine cavitation performance for both conventional and reverse operating modes: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).
    14. Pang, Shujiao & Zhu, Baoshan & Shen, Yunde & Chen, Zhenmu, 2024. "Study on suppression of cavitating vortex rope on pump-turbines by J-groove," Applied Energy, Elsevier, vol. 360(C).
    15. Lin, Yanpi & Li, Xiaojun & Zhu, Zuchao & Wang, Xunming & Lin, Tong & Cao, Haibin, 2022. "An energy consumption improvement method for centrifugal pump based on bionic optimization of blade trailing edge," Energy, Elsevier, vol. 246(C).
    16. Jiao, Weixuan & Chen, Hongjun & Cheng, Li & Zhang, Bowen & Gu, Yangdong, 2023. "Energy loss and pressure fluctuation characteristics of coastal two-way channel pumping stations under the ultra-low head condition," Energy, Elsevier, vol. 278(PA).
    17. Li, Deyou & Qin, Yonglin & Wang, Jianpeng & Zhu, Yutong & Wang, Hongjie & Wei, Xianzhu, 2022. "Optimization of blade high-pressure edge to reduce pressure fluctuations in pump-turbine hump region," Renewable Energy, Elsevier, vol. 181(C), pages 24-38.
    18. Zhang, Bowen & Cheng, Li & Jiao, Weixuan & Zhang, Di, 2023. "Experimental and statistical analysis of the flap gate energy loss and pressure fluctuation spatiotemporal characteristics of a mixed-flow pump device," Energy, Elsevier, vol. 272(C).
    19. Li, Deyou & Chang, Hong & Zuo, Zhigang & Wang, Hongjie & Li, Zhenggui & Wei, Xianzhu, 2020. "Experimental investigation of hysteresis on pump performance characteristics of a model pump-turbine with different guide vane openings," Renewable Energy, Elsevier, vol. 149(C), pages 652-663.
    20. Lu, Guocheng & Li, Deyou & Zuo, Zhigang & Liu, Shuhong & Wang, Hongjie, 2020. "A boundary vorticity diagnosis of the flows in a model pump-turbine in turbine mode," Renewable Energy, Elsevier, vol. 153(C), pages 1465-1478.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:185:y:2022:i:c:p:1343-1361. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.