IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v198y2022icp1065-1081.html
   My bibliography  Save this article

Study of vortex rope based on flow energy dissipation and vortex identification

Author

Listed:
  • Li, Puxi
  • Xiao, Ruofu
  • Tao, Ran

Abstract

Vortex rope causes instabilities in hydro-turbines and marine turbines. It is an important issue in the utilization of ocean energy. The flow energy dissipation (FED) is one of instability problems of turbines. The FED of vortex rope can be evaluated by the entropy production rate (EPR) according to the second law of thermodynamics. The EPR will provide a visualization of the energy change and make a better understanding of the vortex rope. In this study, a swirl generator is studied by analyzing FED and vortical flow pattern with embedded Large Eddy Simulation. By comparing Liutex method with FED's sub items, it is found that the vortex rope will not produce large energy loss. The high FED is mainly produced at the vortex rope boundary where the vortex rope interacts most strongly with the surrounding fluid. Voigt line-shape function is used to quantitatively describe the vortex rope and partition the draft tube. Transition region represents the region where the interaction mainly occurred. Transition region accounts for a higher proportion than other regions. This study provides an effective way in understanding the mechanism of FED in vortex rope and can be used to eliminate vortex rope in hydro-turbines and marine turbines.

Suggested Citation

  • Li, Puxi & Xiao, Ruofu & Tao, Ran, 2022. "Study of vortex rope based on flow energy dissipation and vortex identification," Renewable Energy, Elsevier, vol. 198(C), pages 1065-1081.
    • Handle: RePEc:eee:renene:v:198:y:2022:i:c:p:1065-1081
    DOI: 10.1016/j.renene.2022.08.078
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148122012447
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2022.08.078?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. Yu, An & Tang, Yibo & Tang, Qinghong & Cai, Jianguo & Zhao, Lei & Ge, Xinfeng, 2022. "Energy analysis of Francis turbine for various mass flow rate conditions based on entropy production theory," Renewable Energy, Elsevier, vol. 183(C), pages 447-458.
    2. Bejan, Adrian, 1980. "Second law analysis in heat transfer," Energy, Elsevier, vol. 5(8), pages 720-732.
    3. Sotoude Haghighi, Mohammad Hadi & Mirghavami, Seyed Mohammad & Ghorani, Mohammad Mahdi & Riasi, Alireza & Chini, Seyed Farshid, 2020. "A numerical study on the performance of a superhydrophobic coated very low head (VLH) axial hydraulic turbine using entropy generation method," Renewable Energy, Elsevier, vol. 147(P1), pages 409-422.
    4. Lai, Xi-De & Liang, Quan-Wei & Ye, Dao-Xing & Chen, Xiao-Ming & Xia, Mi-Mi, 2019. "Experimental investigation of flows inside draft tube of a high-head pump-turbine," Renewable Energy, Elsevier, vol. 133(C), pages 731-742.
    5. KC, Anup & Lee, Young Ho & Thapa, Bhola, 2016. "CFD study on prediction of vortex shedding in draft tube of Francis turbine and vortex control techniques," Renewable Energy, Elsevier, vol. 86(C), pages 1406-1421.
    6. Kumar, Sandeep & Cervantes, Michel J. & Gandhi, Bhupendra K., 2021. "Rotating vortex rope formation and mitigation in draft tube of hydro turbines – A review from experimental perspective," Renewable and Sustainable Energy Reviews, Elsevier, vol. 136(C).
    7. Weerakoon, A.H. Samitha & Kim, Byung-Ha & Cho, Young-Jin & Prasad, Deepak Divashkar & Ahmed, M. Rafiuddin & Lee, Young-Ho, 2021. "Design optimization of a novel vertical augmentation channel housing a cross-flow turbine and performance evaluation as a wave energy converter," Renewable Energy, Elsevier, vol. 180(C), pages 1300-1314.
    8. Choi, Hyen-Jun & Zullah, Mohammed Asid & Roh, Hyoung-Woon & Ha, Pil-Su & Oh, Sueg-Young & Lee, Young-Ho, 2013. "CFD validation of performance improvement of a 500 kW Francis turbine," Renewable Energy, Elsevier, vol. 54(C), pages 111-123.
    Full references (including those not matched with items on IDEAS)

    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. Chongfei Sun & Zirong Luo & Jianzhong Shang & Zhongyue Lu & Yiming Zhu & Guoheng Wu, 2018. "Design and Numerical Analysis of a Novel Counter-Rotating Self-Adaptable Wave Energy Converter Based on CFD Technology," Energies, MDPI, vol. 11(4), pages 1-21, March.
    2. Binama, Maxime & Kan, Kan & Chen, Hui-Xiang & Zheng, Yuan & Zhou, Daqing & Su, Wen-Tao & Muhirwa, Alexis & Ntayomba, James, 2021. "Flow instability transferability characteristics within a reversible pump turbine (RPT) under large guide vane opening (GVO)," Renewable Energy, Elsevier, vol. 179(C), pages 285-307.
    3. Su, Wen-Tao & Binama, Maxime & Li, Yang & Zhao, Yue, 2020. "Study on the method of reducing the pressure fluctuation of hydraulic turbine by optimizing the draft tube pressure distribution," Renewable Energy, Elsevier, vol. 162(C), pages 550-560.
    4. Muhirwa, Alexis & Cai, Wei-Hua & Su, Wen-Tao & Liu, Quanzhong & Binama, Maxime & Li, Biao & Wu, Jian, 2020. "A review on remedial attempts to counteract the power generation compromise from draft tubes of hydropower plants," Renewable Energy, Elsevier, vol. 150(C), pages 743-764.
    5. Lu, Zhaoheng & Tao, Ran & Yao, Zhifeng & Liu, Weichao & Xiao, Ruofu, 2022. "Effects of guide vane shape on the performances of pump-turbine: A comparative study in energy storage and power generation," Renewable Energy, Elsevier, vol. 197(C), pages 268-287.
    6. Lei Wang & Jiayi Cui & Lingfeng Shu & Denghui Jiang & Chun Xiang & Linwei Li & Peijian Zhou, 2022. "Research on the Vortex Rope Control Techniques in Draft Tube of Francis Turbines," Energies, MDPI, vol. 15(24), pages 1-27, December.
    7. Bejan, Adrian, 2018. "Thermodynamics today," Energy, Elsevier, vol. 160(C), pages 1208-1219.
    8. Raul-Alexandru Szakal & Alexandru Doman & Sebastian Muntean, 2021. "Influence of the Reshaped Elbow on the Unsteady Pressure Field in a Simplified Geometry of the Draft Tube," Energies, MDPI, vol. 14(5), pages 1-21, March.
    9. Deyou, Li & Hongjie, Wang & Gaoming, Xiang & Ruzhi, Gong & Xianzhu, Wei & Zhansheng, Liu, 2015. "Unsteady simulation and analysis for hump characteristics of a pump turbine model," Renewable Energy, Elsevier, vol. 77(C), pages 32-42.
    10. Khaliq, Abdul, 2004. "Thermodynamic optimization of laminar viscous flow under convective heat-transfer through an isothermal walled duct," Applied Energy, Elsevier, vol. 78(3), pages 289-304, July.
    11. Gaikwad, Harshad Sanjay & Basu, Dipankar Narayan & Mondal, Pranab Kumar, 2017. "Non-linear drag induced irreversibility minimization in a viscous dissipative flow through a micro-porous channel," Energy, Elsevier, vol. 119(C), pages 588-600.
    12. Phoevos (Foivos) Koukouvinis & John Anagnostopoulos, 2023. "State of the Art in Designing Fish-Friendly Turbines: Concepts and Performance Indicators," Energies, MDPI, vol. 16(6), pages 1-25, March.
    13. Yu, An & Li, Longwei & Ji, Jingjing & Tang, Qinghong, 2022. "Numerical study on the energy evaluation characteristics in a pump turbine based on the thermodynamic entropy theory," Renewable Energy, Elsevier, vol. 195(C), pages 766-779.
    14. Shamshiri, Mehdi & Ashrafizaadeh, Mahmud & Shirani, Ebrahim, 2012. "Advantages and disadvantages associated with introducing an extra rarefied gas layer into a rotating microsystem filled with a liquid lubricant: First and second law analyses," Energy, Elsevier, vol. 45(1), pages 716-728.
    15. Seung-Jun Kim & Young-Seok Choi & Yong Cho & Jong-Woong Choi & Jung-Jae Hyun & Won-Gu Joo & Jin-Hyuk Kim, 2020. "Effect of Fins on the Internal Flow Characteristics in the Draft Tube of a Francis Turbine Model," Energies, MDPI, vol. 13(11), pages 1-23, June.
    16. Srinivasacharya, D. & Bindu, K. Hima, 2016. "Entropy generation in a porous annulus due to micropolar fluid flow with slip and convective boundary conditions," Energy, Elsevier, vol. 111(C), pages 165-177.
    17. Samuel O. Adesanya & J. A. Falade & J. C. Ukaegbu & K. S. Adekeye, 2016. "Mathematical Analysis of a Reactive Viscous Flow through a Channel Filled with a Porous Medium," Journal of Mathematics, Hindawi, vol. 2016, pages 1-8, December.
    18. Hyoung-Ho Kim & Md Rakibuzzaman & Kyungwuk Kim & Sang-Ho Suh, 2019. "Flow and Fast Fourier Transform Analyses for Tip Clearance Effect in an Operating Kaplan Turbine," Energies, MDPI, vol. 12(2), pages 1-15, January.
    19. Mousapour, Ashkan & Hajipour, Alireza & Rashidi, Mohammad Mehdi & Freidoonimehr, Navid, 2016. "Performance evaluation of an irreversible Miller cycle comparing FTT (finite-time thermodynamics) analysis and ANN (artificial neural network) prediction," Energy, Elsevier, vol. 94(C), pages 100-109.
    20. Masood, Zahid & Khan, Shahroz & Qian, Li, 2021. "Machine learning-based surrogate model for accelerating simulation-driven optimisation of hydropower Kaplan turbine," Renewable Energy, Elsevier, vol. 173(C), pages 827-848.

    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:198:y:2022:i:c:p:1065-1081. 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.