Refinement of integrated formula of wave overtopping and runup modeling

OCEAN ENGINEERING

卷:220

Article

Yuhi, Masatoshi¹  Mase, Hajime^2,3,4,5  Kim, Sooyoul⁶  Umeda, Shinya¹  Altomare, Corrado⁷ 

[1] Kanazawa Univ, Sch Geosci & Civil Engn, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan

[2] Kyoto Univ, Disaster Prevent Res Inst, Uji, Kyoto 6110011, Japan

[3] Hydro Technol Inst Co Ltd, Kita Ku, Osaka 5306126, Japan

[4] Nikken Kogaku Co Ltd, Shijnuku Ku, 6-10-1 Nishi Shinjuku, Tokyo 1600023, Japan

[5] Toa Corp, Shinjuku Ku, 3-7-1 Nishi Shinjuku, Tokyo 1631031, Japan

[6] Kumamoto Univ, Ctr Water Cycle Marine Environm & Disaster Manage, Chuo Ku, 2-39-1 Kurokami, Kumamoto 8608555, Japan

[7] Univ Politecn Cataluna, Lab Engn Maritima, Barcelona Tech, Calle Jordi Girona 1-3, Barcelona 08034, Spain

关键词: Wave overtopping;    Inclined seawall;    Vertical seawall;    Integrated formula of overtopping and runup modeling;    IFORM;   

DOI  :  10.1016/j.oceaneng.2020.108350

来源: Elsevier

【 摘 要 】

This study attempts to refine a model named the Integrated Formula of Wave Overtopping and Runup Modeling (IFORM) to improve the prediction performance of mean wave overtopping discharge for a broader range of installation conditions. The empirical formula describing the relation between overtopping discharge and maximum runup has been re-examined. A set of piecewise formulas is implemented in the IFORM by optimal reconstruction of coefficients depending on the magnitude of deficit in freeboard. The refined IFORM improves the tendency to underestimate the discharge in the range of relatively high freeboard conditions, while it retains the high performance of the original IFORM in the range where the crest freeboard is relatively low. The refined model's capability for overtopping prediction is validated by comparison with various existing experimental datasets for inclined/vertical seawalls installed at relatively shallow water depth or on land. The prediction accuracy is also examined by comparison with well-known overtopping formulas. Qualitative and quantitative comparisons validate that the current model is able to reproduce the experimental observations over a broad range of overtopping conditions and that the performance of the model proposed in the present study is as good as existing representative models.

【 授权许可】

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