scholarly journals Experimental Investigations on Wave Transmission at Submerged Breakwater with Smooth and Stepped Slopes

2015 ◽  
Vol 116 ◽  
pp. 713-719 ◽  
Author(s):  
Lokesha ◽  
N.B. Kerpen ◽  
S.A. Sannasiraj ◽  
V. Sundar ◽  
T. Schlurmann
Keyword(s):  
Wave Transmission ◽  
Experimental Investigations ◽  
Submerged Breakwater

scholarly journals To study impact level of dominat parameters and propose estimate methodology for wave transmission efficiency of unconventional complex pile submerged breakwater

2020 ◽  
Vol 19 (4) ◽  
pp. 611-625
Author(s):  
Nguyen Anh Tien
Keyword(s):  
Energy Dissipation ◽  
Wave Energy ◽  
Complex Structure ◽  
Transmission Efficiency ◽  
Wave Transmission ◽  
Random Wave ◽  
Submerged Breakwater ◽  
Dissipation Process ◽  
Wave Energy Dissipation ◽  
Major Factors

This article proposes semi-empirical equations to estimate wave transmission coefficient through submerged complex with solid pile breakwater based on theories of random wave energy conservation of perpendicular wave transmission incorporated with physical hydraulic experiments in wave flume applied on both types of submerged breakwater with and without piles. These equations are able to describe interactions and energy dissipation process for each element of this complex structure which are foundation block and pile rows. Energy dissipation process depends on three major factors which are [relative submerge depth (Rc/Hm0), relative crest width (B/Hm0), wave slope at construction location (sm=Hm0/Lm)] and wave energy dissipation process through pile rows is determined by two major factors [relative submerged depth or submerged length of piles (Rc/Hm0), relative pile row width (Xb/Lm)].

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

2020 ◽  
Vol 82 (3) ◽  
Author(s):  
‘Izzat Na’im Ibrahim ◽  
Mohd Shahrizal Ab Razak ◽  
Badronissa Yusof ◽  
Safari Mat Desa
Keyword(s):  
Transmission Coefficient ◽  
Wave Energy ◽  
Wave Transmission ◽  
Relative Width ◽  
Wave Steepness ◽  
Submerged Breakwater ◽  
Wave Heights ◽  
Wave Transmission Coefficient

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.

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