Modelling suspended sediment profiles under waves: A finite mixing length theory

Teakle, Ian A. L. and Nielsen, Peter (2004). Modelling suspended sediment profiles under waves: A finite mixing length theory. In: Jane McKee Smith, Coastal Engineering 2004: Proceedings of the 29th International Conference. 29th International Conference on Coastal Engineering, Lisbon, Portugal, (1780-1792). 19-24 September 2004. doi:10.1142/9789812701916_0142


Author Teakle, Ian A. L.
Nielsen, Peter
Title of paper Modelling suspended sediment profiles under waves: A finite mixing length theory
Conference name 29th International Conference on Coastal Engineering
Conference location Lisbon, Portugal
Conference dates 19-24 September 2004
Convener National Civil Engineering Laboratory
Proceedings title Coastal Engineering 2004: Proceedings of the 29th International Conference
Place of Publication New Jersey ; London
Publisher World Scientific Publishing
Publication Year 2004
Sub-type Fully published paper
DOI 10.1142/9789812701916_0142
ISBN 9812562982
978-9812562982
Editor Jane McKee Smith
Start page 1780
End page 1792
Total pages 13
Language eng
Abstract/Summary The use of a Fickian (infinitesimal–mixing–length) framework for modelling turbulent mixing usually necessitates the use of ad hoc modifications to diffusivities in order to reconcile experimental data with theoretical expectations. This is because in many cases turbulent mixing occurs on scales which cannot be considered infinitesimal. In response to this problem a Finite–Mixing–Length (FML) model for turbulent mixing was derived by Nielsen and Teakle (2004). This paper considers the application of this model to suspended sediment profiles under waves. The FML model is capable of predicting the positive dependence of sediment diffusivity on settling velocity. The model also provides insight into the significance of a previously identified "shape parameter", for suspended sediment profiles.
Subjects 0905 Civil Engineering
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Tue, 03 Feb 2009, 11:14:36 EST by Gina Velli on behalf of Faculty Of Engineering, Architecture & Info Tech