Numerical assessment of tsunami attack on a rubble mound breakwater using OpenFOAM (R)


GÜLER H. G. , BAYKAL C. , Arikawa T., YALÇINER A. C.

APPLIED OCEAN RESEARCH, vol.72, pp.76-91, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 72
  • Publication Date: 2018
  • Doi Number: 10.1016/j.apor.2018.01.005
  • Title of Journal : APPLIED OCEAN RESEARCH
  • Page Numbers: pp.76-91
  • Keywords: Tsunami, Solitary wave, Tsunami overflow, Potential tsunami, Rubble mound breakwater, Numerical modeling, 3-DIMENSIONAL INTERACTION, WAVE INTERACTION, MODELS, GENERATION, EQUATIONS, ISTANBUL, MARMARA, SEA

Abstract

A numerical assessment study of tsunami attack on the rubble mound breakwater of Haydarpasa Port, located at the southern entrance of the Istanbul Bosphorus Strait in the Sea of Marmara, Turkey, is carried out in this study using a Volume-Averaged Reynolds-Averaged Navier-Stokes solver, IHFOAM, developed in OpenFOAM (R) environment. The numerical model is calibrated with and validated against the data from solitary wave and tsunami overflow experiments representing tsunami attack. Furthermore, attack of a potential tsunami near Haydarpasa Port is simulated to investigate effects of a more realistic tsunami that cannot be generated in a wave flume with the present state of the art technology. Discussions on practical engineering applications of this type of numerical modeling studies are given focusing on pressure distributions around the crown-wall of the rubble mound breakwater, and the forces acting on the single stone located behind the crown-wall at the rear side of the breakwater. Numerical modeling of stability/failure mechanism of the overall cross-section is studied throughout the paper.