| Effect of Distortion Ratio on Local Scour Under Tidal Currents and Waves |
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| 作者姓名： | 窦希萍 董凤舞 |
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| 作者单位： | [1]CollegeofEnvironmentalScienceandEngineering,HohaiUniversity,Nanjing210098,China／／NanfingHydratdicResearchInstitute,Nanjing210029,China [2]NanfingHydratdicResearchInstitute,Nanjing210029,China |
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| 摘 要： | Five generalized physical models of drfferent distortion ratios were bruit according to DOU Guo-ren‘s similarity theory of total sediment transport modeling for estuarine and coastal regions. Experiments on local scour in front of groins were made under the actions of tidal currents and waves with clear and sediment entraining water. The scour depths under different dynamic actions are compared. The effect of the distortion ratio on the depth of scour hole is discussed. A relationship between scour depths for distorted and undistorted models is given.
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| 关 键 词： | 物理模型 变形率 局部冲刷 潮汐流动 波动 |
Effect of Distortion Ratio on Local Scour Under Tidal Currents and Waves |
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| DOU Xi-ping a,b, and DONG Feng-wu b aCollege of Environmental Science and Engineering,Hohai University,Nanjing ,China bNanjing Hydraulic Research Institute,Nanjing ,China.Effect of Distortion Ratio on Local Scour Under Tidal Currents and Waves[J].China Ocean Engineering,2004,18(4):613-627. |
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| Authors: | DOU Xi-ping a b and DONG Feng-wu b aCollege of Environmental Science and Engineering Hohai University Nanjing China bNanjing Hydraulic Research Institute Nanjing China |
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| Institution: | DOU Xi-ping a,b,1 and DONG Feng-wu b aCollege of Environmental Science and Engineering,Hohai University,Nanjing 210098,China bNanjing Hydraulic Research Institute,Nanjing 210029,China |
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| Abstract: | Five generalized physical models of different distortion ratios were built according to DOU Guo-ren's similarity theory of total sediment transport modeling for estuarine and coastal regions. Experiments on local scour in front of groins were made under the actions of tidal currents and waves with clear and sediment entraining water. The scour depths under different dynamic actions are compared. The effect of the distortion ratio on the depth of scour hole is discussed. A relationship between scour depths for distorted and undistorted models is given. |
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| Keywords: | physical model distortion ratio tidal currents waves local scour |
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