Journal of Hydrodynamics

, Volume 18, Supplement 1, pp 201–207 | Cite as

Numerical simulation of sediment transport near sea bed under waves

  • Ze-xuan Zhou
  • Peng-zhi Lin
Session B3


The sediment transport near sea bed under waves is simulated using a three-dimensional (3D) numerical model that solves Navier-Stokes equations for incompressible flow, the sediment transport equation and the bed morphology equation. The numerical model consists of two basic modules, the 3D hydrodynamic module (HD) and sediment transport module (ST). The sigma-coordinate is used to convert the wavy flow-field into a cube leading to the easier realization of flow-field and boundary conditions. The model is able to simulate the dynamic change of suspended sediment concentration and bed morphology under various flow conditions. The case where the initial flow-field is full of evenly distributed suspended sediment subjected to a linear wave train is simulated. The results on sediment concentration distributions in the horizontal and vertical directions and resulting bed morphology are verified by the analytical solutions developed in this study. The good agreements between the numerical and analytical results show that the present numerical model is reliable in predicting sediment transport in coastal areas under waves.

Key words

sediment transport free surface wave bed morphology sigma coordinate numerical simulation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    B. Mutlu Sumer & Jorgen Fredsoe. The mechanics of scour in the marine environment [M]. World Scientific Publishing Co, Pte. Ltd, USA, 2002.CrossRefGoogle Scholar
  2. [2]
    Liang Dongfang & Cheng Liang. Numerical modeling of flow and scour below a pipeline in currents-Part I: flow simulation [J]. Coastal Engineering, 2004, 52:25–42.Google Scholar
  3. [3]
    Liang Dongfang, Cheng Liang & Li Fangjun. Numerical modeling of flow and scour below a pipeline in currents-Part II: scour simulation [J]. Coastal Engineering, 2004, 52: 43–62.Google Scholar
  4. [4]
    Lin Pengzhi & Liu Philip L.-F. Internal wave-maker for Navier-Stokes equations models [J]. Journal of Waterway, Port, Coastal and Ocean Engineering, 1999, 125(4): 207–215.CrossRefGoogle Scholar
  5. [5]
    Lin Pengzhi & Li C. W. A σ− coordinate three-dimensional numerical model for free surface wave propagation [J]. International Journal for Numerical Methods in Fluids, 2002, 38:1045–1068.MathSciNetCrossRefGoogle Scholar
  6. [6]
    Lin P. & Li C. W. The initial mixing of pollutant around a circular island due to wave-current interaction [M]. ABC Conference, 2000, pp. XX–YY.Google Scholar
  7. [7]
    Liu Phillip L.-F., Simarro Gonzalo & Orfila Alejandro. Onshore sandbar migration [M]. Proceedings for Asian and Pacific Coastals, Jeju, Korea, September 4–8, 2005, 1–6.Google Scholar

Copyright information

© China Ship Scientific Research Center 2006

Authors and Affiliations

  1. 1.Tropical Marine Science InstituteNational University of SingaporeSingaporeSingapore
  2. 2.Department of Civil EngineeringNational University of SingaporeSingaporeSingapore

Personalised recommendations