THE PERFORMANCE OF NARROW AND BROAD-CRESTED SUBMERGED BREAKWATERS IN DISSIPATING WAVE HEIGHTS

Authors

  • ‘Izzat Na’im Ibrahim Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Malaysia
  • Mohd Shahrizal Ab Razak Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Malaysia
  • Badronissa Yusof Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Malaysia
  • Safari Mat Desa Hydraulic and Instrumentation Lab, National Hydraulic Research Institute of Malaysia, Seri Kembangan, Malaysia

DOI:

https://doi.org/10.11113/jt.v82.13974

Keywords:

Submerged breakwaters, WABCORE, wave transmission coefficient, wave steepness, relative freeboard, relative top crest width

Abstract

The main objective of this paper is to determine the wave transmission coefficient of an improved submerged breakwater called WABCORE. The objective is further explored to assess the effect of various parameters such as wave steepness, Hi/L, relative freeboard, R/d, and relative width of the top crest, B/L on wave transmission coefficient, KT. In general, as wave steepness increases, the wave transmissions decrease. Moreover wave transmission increases as relative freeboard increases. This is due to the fact that higher relative freeboard contains greater wave energy and hard to dissipate. As B/L increases, KT decreases. The effect of relative top crest width is insignificant as the freeboard increases. The transmission coefficient, KT derived from this study can be equated as  , valid for certain ranges. This study concludes that WABCORE is capable to dissipate wave energy.

Author Biography

  • ‘Izzat Na’im Ibrahim, Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Malaysia
    Postgraduate student, Department of Civil Engineering, Universiti Putra Malaysia

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Jurnal Teknologi Vol. 82, No. 3 May 2020

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Published

2020-04-06

Issue

Vol. 82 No. 3: May 2020

Section

Science and Engineering

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How to Cite

THE PERFORMANCE OF NARROW AND BROAD-CRESTED SUBMERGED BREAKWATERS IN DISSIPATING WAVE HEIGHTS. (2020). Jurnal Teknologi (Sciences & Engineering), 82(3). https://doi.org/10.11113/jt.v82.13974