Journal of Marine Science and Technology

Journal of Marine Science and Technology

Study influence of construction submerged breakwater on decrease overtopping and diffraction waves at mound breakwater Using numerical model FLOW3D

Articles in Press

Document Type : Original Manuscript

Authors
Mohammad Reza Fallah Nezhad
Mehdi Behdarvandi Askar
Department of Offshore Structures, Faculty of Marine Engineering, Khorramshahar University of Marine Science and Technology, Khorramshahar , Iran.
10.22113/jmst.2022.294954.2440
Abstract
Overtopping and diffractin of waves are among the hydrodynamic reactions to shore protection structures, which can interfere with the operation and unrest of ports. In order to reduce the effect of hydrodynamic reactions on the coast, in this research, using flow 3D software and numerical modeling, the effect of constructing a submerged breakwater in front of rubble mound breakwater and changes in geometric parameters including structural slope, constructtion distans, the depth of submerged and the type of armor has been addressed. The non-linear waveforms with the Jonswap spectrum and the number of modes examined are 72 different models. The outputs from modeling were analyzed after drawing tables and shapes. The results showed that decreasing the gradient of the structure and the depth of submergence and increasing the distance between the constructions of the submerged breakwater has the greatest effect on the decrease of the Overtopping and diffractin of the waves. Also, tetrapod type armored vehicles in the submerged breakwater have the highest reduction in Overtopping and diffractin of waves in rubble mound breakwater in comparison to cubic and antifer armor.
Keywords
breakwater
Overtopping
diffractin
waves
Deep submerged
Journal of Marine Science and Technology

Articles in Press, Accepted Manuscript
Available Online from 11 June 2022

  • Receive Date 14 July 2021
  • Revise Date 01 October 2021
  • Accept Date 08 January 2022
  • Publish Date 11 June 2022