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Quasi-Three-Dimensional Mathematical Modeling Of Morphological Processes Based On Equilibrium Sediment Transport

Author

Listed:
  • MY. M. CHARAFI

    (Hassan II University, Department of Physics, Faculty of Sciences Ain Chock, B.P. 5366, Maarif Casablanca, Morocco;
    CRR/EE, LPEE, B.P. 5366, Maarif Casablanca, Morocco)

  • A. SADOK

    (Ecole Hassania des Travaux Publics, km 7, Route d'Eljadida, Casablanca, Morocco;
    CRR/EE, LPEE, km 7, Route d'Eljadida, Casablanca, Morocco)

  • A. KAMAL

    (CRR/EE, LPEE, km 7, Route d'Eljadida, Casablanca, Morocco)

  • A. MENAI

    (Hassan II University, Department of Physics, Faculty of Sciences Ain Chock B.P. 5366, Maarif Casablanca, Morocco)

Abstract

A quasi-three-dimensional mathematical model has been developed to study the morphological processes based on equilibrium sediment transport method. The flow velocities are computed by a two-dimensional horizontal depth-averaged flow model (H2D) in combination with logarithmic velocity profiles. The transport of sediment particles by a flow water has been considered in the form of bed load and suspended load. The bed load transport rate is defined as the transport of particles by rolling and saltating along the bed surface and is given by the Van Rijn relationship (1987). The equilibrium suspended load transport is described in terms of an equilibrium sediment concentration profile (ce) and a logarithmic velocity(u). Based on the equilibrium transport, the bed change rate is given by integration of the sediment mass-balance equation. The model results have been compared with a Van Rijn results (equilibrium approach) and good agreement has been found.

Suggested Citation

  • My. M. Charafi & A. Sadok & A. Kamal & A. Menai, 2000. "Quasi-Three-Dimensional Mathematical Modeling Of Morphological Processes Based On Equilibrium Sediment Transport," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 11(07), pages 1425-1436.
  • Handle: RePEc:wsi:ijmpcx:v:11:y:2000:i:07:n:s0129183100001267
    DOI: 10.1142/S0129183100001267
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