| NEW TRENDS IN THE NUMERICAL STUDY OF COASTAL SEDIMENTARY PROCESSES |
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| 作者姓名： | Xiping YU Akira WATANABE |
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| 作者单位： | Department of Hydraulic Engineering，Tsinghua University，Department of Civil Engineering，University of Tokyo Beijing，China，Tokyo，Japan |
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| 摘 要： | 1 INTRODUCTION The conventional method for numerical study of coastal sedimentary processes has been based on the solution of a phase-averaged wave equation, the steady nearshore current equations, the continuity equation for sediment, and an empirical net sediment transport equation. This strategy has advantages in meso-scale problems but it loses accuracy in the vicinity of a structure, where local scour usually occurs. To have a good representation of both meso-scale sediment transport …
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NEW TRENDS IN THE NUMERICAL STUDY OF COASTAL SEDIMENTARY PROCESSES |
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| Xiping YU,Akira WATANABE.NEW TRENDS IN THE NUMERICAL STUDY OF COASTAL SEDIMENTARY PROCESSES[J].International Journal of Sediment Research,2003(2). |
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| Authors: | Xiping YU and Akira WATANABE |
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| Institution: | Xiping YU1 and Akira WATANABE2 1 Department of Hydraulic Engineering,Tsinghua University,Beijing,China,E-mail: yuxiping@tsinghua.edu.cn 2 Department of Civil Engineering,University of Tokyo,Tokyo,Japan |
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| Abstract: | A vertically integrated one-dimensional (1D) Boussinesq equation model and a two-dimensional (2D) Volume of Fluid (VOF) model for cross shore hydrodynamics and coastal sedimentary processes are discussed. Numerical schemes developed for the Boussinesq equations are shown to accurately simulate highly nonlinear waves as well as various phase-averaged phenomena. The VOF model is demonstrated to have advantages in simulation of local phenomena including wave breaking. A hybrid model that couples the Boussinesq equation model and the VOF model is also described. |
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| Keywords: | Boussinesq equation VOF Coastal sedimentary process |
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