A STUDY ON WAVE ABSORPTION AND FLOW CHARASTARISTICS IN THE VISINITY OF A PERMIABLE BREAKWATER CONSISTS OF VERTICALLY-SLOTTED WALLS
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- YAMANO Takashi
- 東洋建設株式会社 土木事業本部総合技術研究所鳴尾研究所
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- NAKAHARA Yusuke
- 大阪市立大学大学院 工学研究科
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- SHIGEMATSU Takaaki
- 大阪市立大学大学院 工学研究科
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- FUJIWARA Ryuichi
- 東洋建設株式会社 土木事業本部総合技術研究所鳴尾研究所
Bibliographic Information
- Other Title
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- 鉛直スリットを有する透過性構造物の消波性能と底部流況特性に関する研究
- エンチョク スリット オ ユウスル トウカセイ コウゾウブツ ノ ショウハ セイノウ ト テイブ リュウキョウ トクセイ ニ カンスル ケンキュウ
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Abstract
The measure against erosion of sandy beaches on the ocean is one of urgent national issues in view of the predicted sea level rise. Some of the authors have been studied a permeable breakwater with slotted walls supported by piles for last several years. Although the characteristics of wave attenuation of the breakwater with vertical slits has been examined by numerical calculation so far, enough validity has not been verified yet. In this study, comparison between calculated results by CADMAS-SURF/3D and experimental results on wave attenuation and flow in the visinity of the permeable breakwater is presented. As a result, it is shown that the CADMAS-SURF/3D is a useful tool to design the permeable breakwater in practical use. According to the results of the calculation and PIV measurements, it is implied that upward flow in front and back of the breakwater will be direct relation with local scour and the vertical circulation flow in the chambers of the permeable breakwater will affect sand transfer.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 72 (2), I_901-I_906, 2016
Japan Society of Civil Engineers
