Experimental Measurements of Solitary Wave Attenuation Over Shallow and Intermediate Submerged Canopy

Attenuations of solitary wave over a patch of submerged canopy are experimentally investigated. The submerged canopy is modeled by a group of circular cylinder array. The decay coefficients of different wave heights in two water depths along the wave flume are measured for six canopy models, includi...

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Bibliographic Details
Published inChina ocean engineering Vol. 30; no. 3; pp. 375 - 392
Main Author 王千 郭晓宇 王本龙 房泳柳 刘桦
Format Journal Article
LanguageEnglish
Published Nanjing Chinese Ocean Engineering Society 01.06.2016
Springer Nature B.V
Department of Engineering Mechanics, Shanghai Jiao Tong University, Shanghai 200240, China%Department of Engineering Mechanics, Shanghai Jiao Tong University, Shanghai 200240, China
MOE Key Laboratory of Hydrodynamics, Shanghai Jiao Tong University, Shanghai 200240, China
Subjects
Canopies
Canopy
Circular cylinders
Coastal Sciences
Coefficients
Cylinders
Decay
Engineering
Flow structures
Fluid- and Aerodynamics
Flumes
Marine & Freshwater Sciences
Numerical and Computational Physics
Oceanography
Offshore Engineering
Plant cover
Shear flow
Simulation
Solitary waves
Submergence
Water depth
Wave attenuation
Wave height
decay coefficient
submerged canopy
PIV
Solitary waves
rigid cylinders
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ISSN0890-5487
2191-8945
DOI10.1007/s13344-016-0025-7

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Summary:Attenuations of solitary wave over a patch of submerged canopy are experimentally investigated. The submerged canopy is modeled by a group of circular cylinder array. The decay coefficients of different wave heights in two water depths along the wave flume are measured for six canopy models, including two canopy heights and three styles of arrangements. The relationships among the decay coefficient, and the dimensionless wave height, submergence ratio, relative height and arrangement of the canopy are experimentally studied. 2D PIV technique is employed to measure the representative flow field inside the canopy. A four-deck flow structure is proposed for wave flow field over shallow submerged canopy. The characteristics of shear flow inside the aligned canopy region are discussed.
Bibliography:32-1441/P
Attenuations of solitary wave over a patch of submerged canopy are experimentally investigated. The submerged canopy is modeled by a group of circular cylinder array. The decay coefficients of different wave heights in two water depths along the wave flume are measured for six canopy models, including two canopy heights and three styles of arrangements. The relationships among the decay coefficient, and the dimensionless wave height, submergence ratio, relative height and arrangement of the canopy are experimentally studied. 2D PIV technique is employed to measure the representative flow field inside the canopy. A four-deck flow structure is proposed for wave flow field over shallow submerged canopy. The characteristics of shear flow inside the aligned canopy region are discussed.
WANG Qian GUO Xiao-yu , WANG Ben-long FANG Yong-liu and LIU Hua（ 1 a Department of Engineering Mechanics, Shanghai Jiao Tong University, Shanghai 200240, China MOE Key Laboratory of Hydrodynamics, Shanghai Jiao Tong University, Shanghai 200240, China）
Solitary waves; submerged canopy; rigid cylinders; decay coefficient; PIV
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ISSN:0890-5487
2191-8945
DOI:10.1007/s13344-016-0025-7