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Numerical Simulation of Water Entry of Cylinder Based on Improved Smoothed Particle Hydrodynamics Method

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Computational and Experimental Simulations in Engineering (ICCES 2023)

Part of the book series: Mechanisms and Machine Science ((Mechan. Machine Science,volume 143))

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Abstract

Water entry of structures is a typical hydrodynamic issue in the field of marine engineering. In this paper, an improved Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) method is utilized to develop a two-dimensional numerical model of water entry of a cylinder in free fall. In order to solve the problem of particle distribution along Lagrangian flow lines inherent to SPH, Gradient Particle Shifting Technique (GPST) is introduced. Besides, a sponge layer is installed at the domain boundary to prevent the effect of boundary reflection pressure. A typical test of water-entry of a tank is conducted. Such results as the surface morphology are compared with reliable experimental data, with a low error. Therefore, the present numerical model is validated. After that, the effect of water-entry velocity on slamming load is discussed. The obtained results shall provide a reference for the further investigation on water-entry impact problems.

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Funding

The National Natural Science Foundation of China (52271307, 52061135107, 52192692,11802025), the opening project of State Key Laboratory of Explosion Science and Technology (KFJJ21-09M), the Liao Ning Revitalization Talents Program (XLYC1908027) and the Fundamental Research Funds for the Central Universities (DUT20RC(3)025, DUT20TD108, DUT20LAB308).

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Authors and Affiliations

  1. State Key Laboratory of Structural Analysis for Industrial Equipment, School of Naval Architecture Engineering, Dalian University of Technology, Dalian, 116024, China

    Yuemei Wang, Shusen Wang, Xi Yang & Zhifan Zhang

  2. Unit No.91388 Troops of the PLA, Dalian, 116041, China

    Bing Li

  3. China Ship Research and Development Academy, Beijing, 100192, China

    Longkan Wang

Authors
  1. Yuemei Wang
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  2. Bing Li
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  3. Longkan Wang
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  4. Shusen Wang
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  5. Xi Yang
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  6. Zhifan Zhang
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Corresponding author

Correspondence to Zhifan Zhang .

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Editors and Affiliations

  1. Dept of Civil and Env'l Engg, University of California, Berkeley, Berkeley, CA, USA

    Shaofan Li

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Wang, Y., Li, B., Wang, L., Wang, S., Yang, X., Zhang, Z. (2024). Numerical Simulation of Water Entry of Cylinder Based on Improved Smoothed Particle Hydrodynamics Method. In: Li, S. (eds) Computational and Experimental Simulations in Engineering. ICCES 2023. Mechanisms and Machine Science, vol 143. Springer, Cham. https://doi.org/10.1007/978-3-031-42515-8_63

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  • DOI: https://doi.org/10.1007/978-3-031-42515-8_63

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-42514-1

  • Online ISBN: 978-3-031-42515-8

  • eBook Packages: EngineeringEngineering (R0)

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