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Applications of Liutex-based force field models for cavitation simulation

  • Special Column on the Liutex Force Field Model (Guest Editor De-Cheng Wan)
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Abstract

When studying the flow dynamics and the characteristics of fluid motion, vortex structure with their interactions is the key issue. In the present work, a vortex control method is investigated based on the vortex identification system of Liutex. The numerical study is carried out in OpenFOAM by directly adding a source term to the Navier-Stokes equations, which is called the centripetal force model in Liutex method. A 2-D test case is examined to justify the proposed method in cavitating flow around Clark-Y hydrofoil, the simulation results show that the improved Liutex solver is feasible. Methodologies of controlling the rotation strength of vortices are able to change the flow field and suppress the cavitation. The applicability of vortex-based control method in 3-D flow field is also studied. The results show that cavitation surrounded by particular vortex can be effectively influenced.

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Authors and Affiliations

  1. Computational Marine Hydrodynamics Lab (CMHL), School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    Min-sheng Zhao, Wei-wen Zhao & De-cheng Wan

  2. Ocean College, Zhejiang University, Zhoushan, 316021, China

    De-cheng Wan

  3. School of Mathematical Science, Soochow University, Suzhou, 215006, China

    Yi-qian Wang

Authors
  1. Min-sheng Zhao
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  2. Wei-wen Zhao
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  3. De-cheng Wan
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  4. Yi-qian Wang
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Corresponding author

Correspondence to De-cheng Wan.

Additional information

Projects supported by the National Key Research and Development Program of China (Grant Nos. 2019YFC0312400, 2019YFB1704200), the National Natural Science Foundation of China (Grant Nos. 51879159, 51909160).

Biography: Min-sheng Zhao (1994-), Male, Ph. D. Candidate

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Zhao, Ms., Zhao, Ww., Wan, Dc. et al. Applications of Liutex-based force field models for cavitation simulation. J Hydrodyn 33, 488–493 (2021). https://doi.org/10.1007/s42241-021-0049-1

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  • DOI: https://doi.org/10.1007/s42241-021-0049-1

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