| Wave Reflection Coefficient Spectrum |
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| 作者姓名： | 俞聿修 邵利民 柳淑学 |
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| 作者单位： | State Key Laboratory of Coastal and Offshore Engineering，State Key Laboratory of Coastal and Offshore Engineering，State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology，Dalian 116024，China，Dalian University of Technology，Dalian 116024，China，Dalian University of Technology，Dalian 116024，China |
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| 基金项目： | ThisprojectwassupportedbytheResearchFundfortheDoctoralProgramofHighEducation ,MinistryofEducationofChina(GrantNo .980 14 118) |
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| 摘 要： | 1 .IntroductionWavereflectionfromstructuresisanimportantfactorforthedesignofthestructures .Therehavebeenmanyresearchesonwavereflectionwithregularwavesandmonochromaticirregularwaves .Miche( 1 951 )proposedanon dimensionalMichenumberMfornormallyincidentirregularwavesconsideringwavebreakingbecauseofthedeepeningofwavesteepnessontheslopeofbreakwaters .ThereflectioncoefficientisproportionaltoM ,i.e .,Kr ∝M =4g( 2π) 5/ 2tan5/ 2 α(Hsf2p) ( 1 )wheregisthegravitationalacceleration ,Hsthesignifican…
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Wave Reflection Coefficient Spectrum |
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| YU Yu-xiu,SHAO Li-min and LIU Shu-xue State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian ,China.Wave Reflection Coefficient Spectrum[J].China Ocean Engineering,2003,17(3). |
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| Authors: | YU Yu-xiu SHAO Li-min and LIU Shu-xue State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian China |
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| Institution: | YU Yu-xiu1,SHAO Li-min and LIU Shu-xue State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | The wave reflection coefficient frequency spectrum and directional spectrum for concrete face slope breakwaters and rubble mound breakwaters are investigated through physical model tests in the present study. The reflection coefficients of oblique irregular waves are analyzed by the Modified Two-Point Method (MTPM) proposed by the authors. The results show that the wave reflection coefficient decreases with increasing wave frequency and incident angle or decreasing structure slope. The reflection coefficient frequency spectrum and its variation with Iribarren number are given in this paper. The paper also suggests an empirical 3-dimensional reflection coefficient spectrum, i.e. reflection coefficient directional spectrum, which can be used to illustrate quantitatively the variation of reflection coefficient with the incident angle and the Iribarren number for oblique irregular waves. |
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| Keywords: | wave reflection frequency spectrum reflection coefficient directional spectrum slope breakwater |
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