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<p>Seawalls are critical for coastal protection, yet a comprehensive understanding of how their geometry affects hydrodynamic loads, performance, and local turbulence remains incomplete, with a notable gap in systematic comparisons of concave, convex, and sloped profiles linking run-up, loads, and turbulent structures. This study addresses this by using a validated RANS model with <i>k</i>-<i>ε</i> RNG turbulence and VOF method to analyze highly nonlinear solitary waves interacting with these geometries. Results show that seawall curvature (for <i>R</i> = 0.5&#xa0;m) is a potential critical design parameter: concave profiles increase reflection and toe vortices, amplifying loads and scour potential; convex ones reduce forces and turbulence; sloped ones dissipate energy but increase overtopping. This integrated analysis of pressure, forces, and TKE provides insights for balancing stability, efficiency, and scour mitigation in coastal designs.</p>

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Numerical Comparison of Solitary Wave Interactions with Concave, Convex, and Sloped Seawalls: Hydrodynamics, Loads, and Turbulence

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月3日

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  • SeyedMahmood Ghassemizadeh,
  • Farzad ShojaeeBaghdar,
  • Amin Mazaherizaveh,
  • Reza ShojaeeBaghdar,
  • Ali Ghasemizadeh,
  • Esmaeel Talesh-Alikhani

摘要

Seawalls are critical for coastal protection, yet a comprehensive understanding of how their geometry affects hydrodynamic loads, performance, and local turbulence remains incomplete, with a notable gap in systematic comparisons of concave, convex, and sloped profiles linking run-up, loads, and turbulent structures. This study addresses this by using a validated RANS model with k-ε RNG turbulence and VOF method to analyze highly nonlinear solitary waves interacting with these geometries. Results show that seawall curvature (for R = 0.5 m) is a potential critical design parameter: concave profiles increase reflection and toe vortices, amplifying loads and scour potential; convex ones reduce forces and turbulence; sloped ones dissipate energy but increase overtopping. This integrated analysis of pressure, forces, and TKE provides insights for balancing stability, efficiency, and scour mitigation in coastal designs.