| Modeling of suspended sediment transport with waveinduced longshore current in Huanghe (Yellow) River Delta |
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| 作者姓名： | LI Changliang LIANG Bingchen ZHANG Jing |
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| 作者单位： | LI Changliang(College of Petroleum Engineering, China University of PetroleumEast China, Qingdao,,266555, China;Engineering College, Ocean University of China, Qingdao 266100, China);LIANG Bingchen,ZHANG Jing(Engineering College, Ocean University of China, Qingdao 266100, China) |
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| 基金项目： | supported by 973 Project “Land-Sea interaction and its effect on the environment in the typical estuaries and offishore areas of China” under contract No. 2002CB412408;;Natural Science Foundation of Shandong Provinceunder contract No. Q2007E05 |
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| 摘 要： | A three-dimensional suspended sediment model(SED)developed by the present authors is coupled with the combinatorial model of COHERENS(Luyten et al.,1999) (the three-dimensional coupled hydrodynamical-ecological model for Regional and Shelf Seas) and SWAN(Holthuijsen et al.,2004) (the third generation wave model).SWAN is regarded as a subroutine of COHERENS and gets time-and space-varying current velocity and surface elevation from COHERENS.COHERENS gets time-and space-varying wave relevant parameters provided by SWAN.Effects of wave on current are applied in bottom shear stress,wave-induced depth-dependent radiation stress and surface drag coefficient calculation.At the same time,the damping function of suspended sediment on turbulence is introduced into COHERENS.So the sediment model SED has feed back on circulation model COHERENS.The SED obtains current as sociated parameters from COHERENS.Then a couple dhydrodynamic-sediment model COHERENS-SED being able to account for interaction between wave and current is obtained.COHERENS-SED is adopted to simulate three-dimensional suspended sediment transport in the Huanghe River delta.In terms of simulation results,there is obvious diffierence between top and bottom layer of wave-induced longshore current.The values of time series of sediment concentration gotten by COHERENS-SED have,generally,an accepted agreement extent with measurement.Significant wave heights and wave periods obtained by COHERENS-SED show that wave simulation case with current’s effect can give better agreement extent with measurement than case without current’s effect.In the meantime,suspended sediment concentration distributing rule obtained by COHERENS-SED is similar to former researches and measurement.
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| 关 键 词： | 黄河沿岸 三角洲 输沙 电流 悬浮 建模 |
| 收稿时间： | 3/3/2007 12:00:00 AM |
| 修稿时间： | 1/5/2009 12:00:00 AM |
Modeling of suspended sediment transport with waveinduced longshore current in Huanghe (Yellow) River Delta |
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| LI Changliang,LIANG Bingchen,ZHANG Jing.Modeling of suspended sediment transport with waveinduced longshore current in Huanghe (Yellow) River Delta[J].Acta Oceanologica Sinica,2009,28(3):65-74. |
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| Authors: | LI Changliang LIANG Bingchen and ZHANG Jing |
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| Institution: | 1.College of Petroleum Engineering, China University of Petroleum(East China), Qingdao,, 266555, China;Engineering College, Ocean University of China, Qingdao 266100, China2.Engineering College, Ocean University of China, Qingdao 266100, China |
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| Abstract: | A three-dimensional suspended sediment model (SED) developed by the present authors is coupled with the combinatorial model of COHERENS (Luyten et al., 1999) (the three-dimensional coupled hydrodynamical-ecological model for Regional and Shelf Seas) and SWAN (Holthuijsen et al., 2004) (the third generation wave model). SWAN is regarded as a subroutine of COHERENS and gets time- and space-varying current velocity and surface elevation from COHERENS. COHERENS gets time- and space- varying wave relevant parame... |
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| Keywords: | Huanghe River delta suspended sediment wave-induced longshore current CO-HERENS SWAN COHERENS-SED |
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