Numerical modelling of mud transport processes in the Tamar Estuary
Petersen, O.; Vested, J.; Manning, A.; Christie, M.; Dyer, K. (2002). Numerical modelling of mud transport processes in the Tamar Estuary, in: Winterwerp, J.C. et al. (Ed.) Fine sediment dynamics in the marine environment. Proceedings in Marine Science, 5: pp. 643-654 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., more In: Proceedings in Marine Science. Elsevier: New York. ISSN 1568-2692; e-ISSN 2352-2860, more |  |
| Keyword | | | Author keywords | cohesive sediments; fluid mud; numerical modelling; turbulence; experiments |
| Authors | | Top | - Petersen, O.
- Vested, J.
- Manning, A.
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| Abstract | Transport processes of fine-grained sediments in the Tamar Estuary, UK, are studied using a combination of two- and three-dimensional numerical models and a comprehensive observational data set, collected during a COSINUS field campaign in 1999. The three-dimensional model is based on a hydrostatic version of MIKE 3, combining models for flow, stratification, turbulence and mud transport. Using a two-dimensional flow model of the whole estuary to provide boundary information, a high-resolution three-dimensional model is set up for a section of the upper estuary, containing a pronounced turbidity maximum. The model is calibrated using the observations. A sensitivity analysis is carried out, where various formulations of flocculation effects and of buoyancy effects on the turbulence are investigated. The conclusions are that the models can provide a realistic picture of the mud transport processes, but are sensitive to the specific parameterisation of flocculation. |
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