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Hydraulic Characteristics of Continuous Submerged Jet Impinging on a Wall by Using Numerical Simulation and PIV Experiment

Author

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  • Hongbo Mi

    (College of Mechatronics Engineering, Hainan Vocational University of Science and Technology, Haikou 571126, China
    Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Chuan Wang

    (College of Mechatronics Engineering, Hainan Vocational University of Science and Technology, Haikou 571126, China
    College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China)

  • Xuanwen Jia

    (College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China)

  • Bo Hu

    (Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Hongliang Wang

    (School of Aerospace and Mechanical Engineering/Flight College, Changzhou Institute of Technology, Changzhou 213032, China)

  • Hui Wang

    (College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China)

  • Yong Zhu

    (National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China)

Abstract

Due to their high efficiency, low heat loss and associated sustainability advantages, impinging jets have been used extensively in marine engineering, geotechnical engineering and other engineering practices. In this paper, the flow structure and impact characteristics of impinging jets with different Reynolds numbers and impact distances are systematically studied by Flow-3D based on PIV experiments. In the study, the relevant state parameters of the jets are dimensionlessly treated, obtaining not only the linear relationship between the length of the potential nucleation zone and the impinging distance, but also the linear relationship between the axial velocity and the axial distance in the impinging zone. In addition, after the jet impinges on the flat plate, the vortex action range caused by the wall-attached flow of the jet gradually decreases inward with the increase of the impinging distance. By examining the effect of Reynolds number Re on the hydraulic characteristics of the submerged impact jet, it can be found that the structure of the continuous submerged impact jet is relatively independent of the Reynolds number. At the same time, the final simulation results demonstrate the applicability of the linear relationship between the length of the potential core region and the impact distance. This study provides methodological guidance and theoretical support for relevant engineering practice and subsequent research on impinging jets, which has strong theoretical and practical significance.

Suggested Citation

  • Hongbo Mi & Chuan Wang & Xuanwen Jia & Bo Hu & Hongliang Wang & Hui Wang & Yong Zhu, 2023. "Hydraulic Characteristics of Continuous Submerged Jet Impinging on a Wall by Using Numerical Simulation and PIV Experiment," Sustainability, MDPI, vol. 15(6), pages 1-20, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:5159-:d:1097208
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    References listed on IDEAS

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    1. Yabin Gao & Peizhuang Han & Fei Wang & Jing Cao & Shaoqi Zhang, 2022. "Study on the Characteristics of Water Jet Breaking Coal Rock in a Drilling Hole," Sustainability, MDPI, vol. 14(14), pages 1-19, July.
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    Cited by:

    1. Xin He & Changjiang Yuan & Haoran Gao & Yaqing Chen & Rui Zhao, 2023. "Calibration of Turbulent Model Constants Based on Experimental Data Assimilation: Numerical Prediction of Subsonic Jet Flow Characteristics," Sustainability, MDPI, vol. 15(13), pages 1-18, June.

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