| Numerical Modeling of Water Wave Interaction with A Soft Mud Bed |
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| 作者姓名： | 齐鹏 王石青 侯一筠 |
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| 作者单位： | [1]InstituteofOceanology,TheChineseAcademyofSciences,Qingdao266071,China [2]NorthChinaInstifuteofWaterConservancyandHydroelectricPower,Zhengzhou450008,China |
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| 基金项目： | ThepresentworkwasfinanciallysupportedbytheNationalNaturalScienceFoundationofChina(GrantNo.40176010)andtheHiTechResearchandDevelopmentProgramofChina(863,GrantNo.2001AA633070) |
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| 摘 要： | A vertical 2-D numerical model is presented for simulating the interaction between water waves and a soft mud bed. Taking into aceotmt nonlinear theology, a semi-empirical theological model is applied to this water-mud model, reflecting the combined visco-elasto-plastic properties of soft mud under such oscillatory external forces as water waves. In order to increase the resolution of the flow in the neighborhood of both sides of the inter-surface, a logarithmic grid in the vertical direction is employed for numerical treatment. Model verifications are given through comparisons between the calculated and the measured mud mass transport velocities as well as wave height changes.
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| 关 键 词： | 水波 数值模型 泥封床 质量传递 波动阻尼 |
Numerical Modeling of Water Wave Interaction with A Soft Mud Bed |
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| QI Peng a,WANG Shi-qing b and HOU Yi-jun a aInstitute of Oceanology,The Chinese Academy of Sciences,Qingdao ,China bNorth China Instifute of Water Conservancy and Hydroelectric Power,Zhengzhou ,China.Numerical Modeling of Water Wave Interaction with A Soft Mud Bed[J].China Ocean Engineering,2004,18(4):605-612. |
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| Authors: | QI Peng a WANG Shi-qing b and HOU Yi-jun a aInstitute of Oceanology The Chinese Academy of Sciences Qingdao China bNorth China Instifute of Water Conservancy and Hydroelectric Power Zhengzhou China |
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| Institution: | QI Peng a,1,WANG Shi-qing b and HOU Yi-jun a aInstitute of Oceanology,The Chinese Academy of Sciences,Qingdao 266071,China bNorth China Instifute of Water Conservancy and Hydroelectric Power,Zhengzhou 450008,China |
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| Abstract: | A vertical 2-D numerical model is presented for simulating the interaction between water waves and a soft mud bed. Taking into account nonlinear rheology, a semi-empirical rheological model is applied to this water-mud model, reflecting the combined visco-elasto-plastic properties of soft mud under such oscillatory external forces as water waves. In order to increase the resolution of the flow in the neighborhood of both sides of the inter-surface, a logarithmic grid in the vertical direction is employed for numerical treatment. Model verifications are given through comparisons between the calculated and the measured mud mass transport velocities as well as wave height changes. |
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| Keywords: | water waves mud bed rheological model wave damping mud mass transport |
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