Study on suspended sediment transport and bed changes at tidal channel of Yamen

被引：0
|
作者：
Liu J. [1 ,2 ]
Li R. [1 ,2 ]
Zhang Y. [1 ,2 ]
Dong D. [1 ,2 ]
机构：
[1] Nation Marine Environmental Forecasting Center
[2] Key Laboratory of Coastal Disaster and Defence, Hohai University
来源：
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | 2010年 / 18卷 / 04期
关键词：
Erosion and deposition; Finite volume method (FVM); Suspended sediment transport; Tidal channel;
D O I：
10.3969./j.issn.1005-0930.2010.04.011
中图分类号：
学科分类号：
摘要：
According to special hydrodynamic features and suspended sediment transport in the tidal channel, considering the runoff, tidal current and other dynamic factors, a 3-D suspended sediment transport and sediment bed level changes mathematical model was proposed. The models used the unstructured triangular grids in the plane and σ-coordinate in the vertical. Triangular grid meshes could provide an accurate fitting of the irregular coastal boundary. Using finite volume method to discrete integral forms of the governing equations, the water and momentum balances were calculated on each control cell. Then the distribution of suspended sediment and scour-and-fill variation of Yamen Channel were calculated and simulated. Comparing the results of computed and the measured, it was concluded that the transport process of suspended sediment was simulated well. Finally, the distribution features of concentration fields were analyzed in plane and in vertical separately, and the variation of bed level was studied quantitatively.
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页码：637 / 644
页数：7
相关论文
共 14 条
  • [1] Yang X., Wang W., A statistical study on hydrodynamic sedimentation and sand movement Huangmaohai Estuary Bay, Ocean Engineering, 12, 4, pp. 42-51, (1994)
  • [2] Chen X., Chen Y., Lai G., Modeling of the transport of suspended solids in the estuary of Zhujiang River, Acta Oceanologica Sinica, 25, 2, pp. 120-127, (2003)
  • [3] Li R., Wang C., Shao Y., Et al., Research on sediment deposition in Yamen Waterway, China Harbour Engineering, 2, pp. 5-7, (2005)
  • [4] Zhao D., Shen F., Yan Z., Et al., A 2D sediment transport model based on the FVM with FDS for tidal rivers, Journal of Hydrodinamics (Ser A), 19, 1, pp. 98-103, (2004)
  • [5] Yu M., Yang G., Study on mathematical model for transportation of plane 2-D non-homogeneous sediment, Shuili XueBao, 6, pp. 65-69, (2000)
  • [6] Zhang J., Zhang X., Wang B., 2-D mathematic model on flow, sediment, temperature and concentration fields and its application, Journal of Yangtze River Scientific Research Institute, 23, 3, pp. 1-4, (2006)
  • [7] Changsheng C., Hedong L., An unstructured grid, finite-volume, three-dimensional, primitive equations ocean model: application to coastal ocean and estuaries, Journal of Atmospheric and Oceanic Technology, 20, pp. 159-186, (2003)
  • [8] Dick E., Introduction to finite-volume techniques in computational fluid dynamics, Computational Fluid Dynamics, pp. 271-297, (1994)
  • [9] Cockburn, Hou B.S., Shu C.W., TVB Runge-Kutta local projection discontinuous Galerkin finite element method for conservation laws IV: The multidimentional case, J Comp Phys, 54, pp. 545-581, (1990)
  • [10] Liu J., Li R., Zhang Y., Unstructured grid FVM model and 3-D simulation studies on Yamen Channel, Journal of Hydrodinamics (Ser A), 24, 1, pp. 49-55, (2009)
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