Hydrodynamic characteristics of slotted breakwaters under regular waves
The performance of a slotted breakwater consisting of one row of vertical slots was investigated theoretically and experimentally under normal regular waves. A simple theoretical model based on an eigenfunction was developed. The wave transmission, reflection, energy loss, and hydrodynamic force exe...
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| Veröffentlicht in: | Journal of marine science and technology 2011-09, Vol.16 (3), p.331-342 |
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| creator | Koraim, A. S. |
| description | The performance of a slotted breakwater consisting of one row of vertical slots was investigated theoretically and experimentally under normal regular waves. A simple theoretical model based on an eigenfunction was developed. The wave transmission, reflection, energy loss, and hydrodynamic force exerted on the breakwater were calculated for different values of the wave and structure parameters. The validity of the theoretical model was examined by comparing its results with theoretical and experimental results obtained from different studies. It was found that the transmission coefficient decreases with increasing dimensionless wavenumber (
kh
), increasing wave steepness (
H
i
/
L
), and decreasing breakwater porosity (
ε
). The reflection coefficient showed the opposite trend to the transmission coefficient. Also, about 20–50% of incident wave energy was lost due to the effect of the breakwater. In addition, the proposed theoretical model can be used for predicting the performance of slotted breakwaters and the hydrodynamic forces exerted on these structures using the friction coefficient
f
= 1.5. |
| doi_str_mv | 10.1007/s00773-011-0126-1 |
| format | Article |
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kh
), increasing wave steepness (
H
i
/
L
), and decreasing breakwater porosity (
ε
). The reflection coefficient showed the opposite trend to the transmission coefficient. Also, about 20–50% of incident wave energy was lost due to the effect of the breakwater. In addition, the proposed theoretical model can be used for predicting the performance of slotted breakwaters and the hydrodynamic forces exerted on these structures using the friction coefficient
f
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kh
), increasing wave steepness (
H
i
/
L
), and decreasing breakwater porosity (
ε
). The reflection coefficient showed the opposite trend to the transmission coefficient. Also, about 20–50% of incident wave energy was lost due to the effect of the breakwater. In addition, the proposed theoretical model can be used for predicting the performance of slotted breakwaters and the hydrodynamic forces exerted on these structures using the friction coefficient
f
= 1.5.</description><subject>Automotive Engineering</subject><subject>Breakwalls</subject><subject>Breakwaters</subject><subject>Coasts</subject><subject>Coefficients</subject><subject>Computational fluid dynamics</subject><subject>Energy loss</subject><subject>Engineering</subject><subject>Engineering Design</subject><subject>Engineering Fluid Dynamics</subject><subject>Fluid flow</subject><subject>Fluid mechanics</subject><subject>Friction</subject><subject>Hydrodynamics</subject><subject>Marine</subject><subject>Mathematical models</subject><subject>Mechanical Engineering</subject><subject>Offshore Engineering</subject><subject>Original Article</subject><subject>Porosity</subject><subject>Propagation</subject><subject>Wave energy</subject><issn>0948-4280</issn><issn>1437-8213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kUtLxDAQx4MouD4-gLfiRS_VyaN5HBfxBQte9BzSJF2r3WZNWpf99mapIAhKmAQmv_9kMn-EzjBcYQBxnfImaAkY5yC8xHtohhkVpSSY7qMZKCZLRiQcoqOU3gCwqBTM0P3D1sXgtr1ZtbawryYaO_jYpqG1qQhNkbowDN4VdfTmfWPyXSrG3vlYRL8cOxOLjfn06QQdNKZL_vT7PEYvd7fPNw_l4un-8Wa-KC1jcigZdlyCBekqrmpeOcY5bZqa14YB5s4SYVRdgyJAKCXSOUqrhoMymArGGD1GF1PddQwfo0-DXrXJ-q4zvQ9j0gryO0xwlcnLf0ksBFBSEUUyev4LfQtj7PM_tJRC7oJn6GqClqbzuu2bMORZ5eV8Hl3ofdPm_FxgJkVVcZoFeBLYGFKKvtHr2K5M3GoMemeankzT2TS9M03jrCGTJmW2X_r408nfoi9Uypfp</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Koraim, A. 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S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydrodynamic characteristics of slotted breakwaters under regular waves</atitle><jtitle>Journal of marine science and technology</jtitle><stitle>J Mar Sci Technol</stitle><date>2011-09-01</date><risdate>2011</risdate><volume>16</volume><issue>3</issue><spage>331</spage><epage>342</epage><pages>331-342</pages><issn>0948-4280</issn><eissn>1437-8213</eissn><abstract>The performance of a slotted breakwater consisting of one row of vertical slots was investigated theoretically and experimentally under normal regular waves. A simple theoretical model based on an eigenfunction was developed. The wave transmission, reflection, energy loss, and hydrodynamic force exerted on the breakwater were calculated for different values of the wave and structure parameters. The validity of the theoretical model was examined by comparing its results with theoretical and experimental results obtained from different studies. It was found that the transmission coefficient decreases with increasing dimensionless wavenumber (
kh
), increasing wave steepness (
H
i
/
L
), and decreasing breakwater porosity (
ε
). The reflection coefficient showed the opposite trend to the transmission coefficient. Also, about 20–50% of incident wave energy was lost due to the effect of the breakwater. In addition, the proposed theoretical model can be used for predicting the performance of slotted breakwaters and the hydrodynamic forces exerted on these structures using the friction coefficient
f
= 1.5.</abstract><cop>Japan</cop><pub>Springer Japan</pub><doi>10.1007/s00773-011-0126-1</doi><tpages>12</tpages></addata></record> |
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| language | eng |
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| subjects | Automotive Engineering Breakwalls Breakwaters Coasts Coefficients Computational fluid dynamics Energy loss Engineering Engineering Design Engineering Fluid Dynamics Fluid flow Fluid mechanics Friction Hydrodynamics Marine Mathematical models Mechanical Engineering Offshore Engineering Original Article Porosity Propagation Wave energy |
| title | Hydrodynamic characteristics of slotted breakwaters under regular waves |
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