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Investigation of Cavitation Bubble Dynamics Considering Pressure Fluctuation Induced by Slap Forces

Author

Listed:
  • Xiaoyu Wang

    (School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
    These authors contributed equally to this work.)

  • Shenghao Zhou

    (School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
    These authors contributed equally to this work.)

  • Zumeng Shan

    (School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China)

  • Mingang Yin

    (School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China)

Abstract

Cavitation erosion is induced by the penetrating pressure from implosion of cavitation bubbles nearby solid boundary. The bubble evolution and the subsequent collapse pressure are especially important to evaluate the erosion degradation of solid boundary materials. The bubble dynamics equation taking into account the influence of distance between bubble and solid boundary is formulated to investigate the effect of boundary wall on bubble evolution process. The pressure fluctuation induced by slapping forces is adopted to evaluate the bubble dynamic characteristics. Negative pressure period which reflects the effect of vibration velocity and gap clearance also has large influence on bubble dynamics. The effects of standoff distance, initial radius and negative pressure period on bubble evolution and collapsing shock pressure are discussed. Maximum bubble radius increases with standoff distance and initial radius, while shock pressure increases with distance and decreases with bubble initial radius, and both of them increase with negative pressure period.

Suggested Citation

  • Xiaoyu Wang & Shenghao Zhou & Zumeng Shan & Mingang Yin, 2021. "Investigation of Cavitation Bubble Dynamics Considering Pressure Fluctuation Induced by Slap Forces," Mathematics, MDPI, vol. 9(17), pages 1-10, August.
    • Handle: RePEc:gam:jmathe:v:9:y:2021:i:17:p:2064-:d:622938
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    Citations

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    Cited by:

    1. Damir A. Gubaidullin & Dilya D. Gubaidullina & Yuri V. Fedorov, 2023. "Mathematical Modeling of the Wave Dynamics of an Encapsulated Perfluorocarbon Droplet in a Viscoelastic Liquid," Mathematics, MDPI, vol. 11(5), pages 1-10, February.
    2. Shiqi Xia & Yimin Xia & Jiawei Xiang, 2022. "Modelling and Fault Detection for Specific Cavitation Damage Based on the Discharge Pressure of Axial Piston Pumps," Mathematics, MDPI, vol. 10(14), pages 1-13, July.

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