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Description of Vertical exchange processes in numerical mud transport modelling
Petersen, O.; Vested, J. (2002). Description of Vertical exchange processes in numerical mud transport modelling, in: Winterwerp, J.C. et al. (Ed.) Fine sediment dynamics in the marine environment. Proceedings in Marine Science, 5: pp. 375-391
In: Winterwerp, J.C.; Kranenburg, C. (Ed.) (2002). Fine sediment dynamics in the marine environment. Proceedings in Marine Science, 5. Elsevier: Amsterdam. ISBN 0-444-51136-9. XV, 713 pp.
In: Proceedings in Marine Science. Elsevier: New York. ISSN 1568-2692; e-ISSN 2352-2860
Peer reviewed article  

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Trefwoord
    Marien
Author keywords
    models; cohesive sediments; entrainment; concentrated benthic suspension layers

Auteurs  Top 
  • Petersen, O.
  • Vested, J.

Abstract
    The physical background for entrainment and erosion of cohesive sediment is briefly discussed followed by suggestions for parameterisations in both two-dimensional horizontal (2DH) and three-dimensional (3D) sediment models. The 2DH parameterisation uses a 2D-layer approach. The 3D parameterisation is based on the application of a coupled turbulence-sediment model. In order to investigate the feasibility of the proposed parameterisations with respect to functionality and the ability to predict reasonable values these are tested on data collected during the Tamar Field experiment. The results of the parameterisations are discussed in relation to the Ariathurai-Partheniades equation for erosion. A direct comparison of results from the turbulence-sediment model and the entrainment expression of Kranenburg and Winterwerp (1997) shows a good agreement. For a more comprehensive comparison of field data with model results, reference is made to Petersen et al. (2000).

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