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Characterization of Partial Dam-Break Waves: Effects of Upstream and Downstream Water Levels

Author

Listed:
  • Yanshun Liu

    (Shandong University
    Shandong University)

  • Xiao Zhang

    (Shandong University
    Laoshan Laboratory
    Shandong University
    Weifang Hydrodynamics Science and Technology Industry Institute)

  • Yuxue Sun

    (Shandong University
    Shandong University)

  • Hao Yu

    (Shandong University
    Shandong University)

  • Chuanyu Sun

    (Shandong University
    Shandong University)

  • Zihan Li

    (Shandong University
    Shandong University)

  • Xianghui Li

    (Shandong University
    Shandong University)

Abstract

Accurate prediction of dam-break waves profiles is pivotal for risk assessment and remediation planning. This study focuses on wave characterizing of partial dam-break waves by comprehensively accounting for the influence of upstream and downstream water levels via tests. The way in which upstream and downstream water levels affect wave heights are analyzed, and the symmetry of the partial dam-break wave is examined using indicators such as the asymmetry As, skewness Sk, and proportion of subwaves Se. The profiles and wave speeds of partial dam-break waves are also compared with those of solitary waves to identify the ideal conditions for generating solitary waves. Additionally, a model that predicts solitary wave height based on the principle of mass conservation is presented. The results indicate that: (1) the height of the partial dam-break waves increases linearly as the water level difference hi increases; (2) partial dam-break waves exhibit asymmetry, and the wave front profiles align well with the theoretical solitary wave profiles; (3) solitary wave theory provides a more accurate prediction of the propagation speed of partial dam-break waves; (4) the corrected wave height prediction model exhibits an average absolute prediction error of 0.0010 m, demonstrating a superior prediction performance. This study enhances our understanding of the wave profiles of partial dam-break waves and introduces a new laboratory-based method for generating solitary waves.

Suggested Citation

  • Yanshun Liu & Xiao Zhang & Yuxue Sun & Hao Yu & Chuanyu Sun & Zihan Li & Xianghui Li, 2025. "Characterization of Partial Dam-Break Waves: Effects of Upstream and Downstream Water Levels," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 39(2), pages 759-777, January.
    • Handle: RePEc:spr:waterr:v:39:y:2025:i:2:d:10.1007_s11269-024-03989-4
    DOI: 10.1007/s11269-024-03989-4
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    References listed on IDEAS

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    1. Ling Peng & Ting Zhang & Jianzhu Li & Ping Feng, 2023. "Three-Dimensional Numerical Study of Dam-Break Flood Impacting Problem with VOF Method and Different Turbulence Closures," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(10), pages 3875-3895, August.
    2. Hasan Oğulcan Marangoz & Tuğce Anılan & Servet Karasu, 2024. "Investigating the Non-Linear Effects of Breach Parameters on a Dam Break Study," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 38(5), pages 1773-1790, March.
    3. Hao Gu & Xiao Fu & Yantao Zhu & Yijun Chen & Lixian Huang, 2020. "Analysis of Social and Environmental Impact of Earth-Rock Dam Breaks Based on a Fuzzy Comprehensive Evaluation Method," Sustainability, MDPI, vol. 12(15), pages 1-15, August.
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