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

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  • 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.

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  • 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
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    References listed on IDEAS

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    1. 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.
    2. 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.
    3. 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).
    4. Bejan, Adrian, 1980. "Second law analysis in heat transfer," Energy, Elsevier, vol. 5(8), pages 720-732.
    5. 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.
    6. 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.
    7. 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.
    8. 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.
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