Applied Turbulence Modelling in Marine Waters

AvHans Burchard

Häftad, Engelska, 2002

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Beskrivning

The simulation of turbulent mixing processes in marine waters is one of the most pressing tasks in oceanography. It is rendered difficult by the various complex phenomena occurring in these waters like strong stratification, ex ternal and internal waves, wind generated turbulence, Langmuir circulation etc. The need for simulation methods is especially great in this area because the physical processes cannot be investigated in the laboratory. Tradition ally, empirical bulk type models were used in oceanography, which, however, cannot account for many of the complex physical phenomena occurring. In engineering, statistical turbulence models describing locally the turbulence mixing processes were introduced in the early seventies, such as the k E model which is still one of the most widely used models in Computational Fluid Dy namics. Soon after, turbulence models were applied more and more also in the atmospheric sciences, and here the k kL model of Mellor and Yamada became particularly popular. In oceanography, statistical turbulence mod els were introduced rather late, i. e. in the eighties, and mainly models were taken over from the fields mentioned above, with some adjustments to the problems occurring in marine waters. In the literature on turbulence model applications to oceanography problems controversial findings and claims are reported about the various models, creating also an uncertainty on how well the models work in marine water problems.

Produktinformation

Utgivningsdatum:2002-09-23
Mått:155 x 235 x 13 mm
Vikt:365 g
Format:Häftad
Språk:Engelska
Serie:Lecture Notes in Earth Sciences
Antal sidor:218
Upplaga:2002
Förlag:Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
ISBN:9783540437956

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Recensioner i media

From the reviews: "The text is concise, clearly written and presents an excellent overview of the current state of research on marine turbulence problems. ... In summary this is a well-balanced book and a must for those interested in the field. ... This book will be of interest to oceanographers, particularly those interested in ocean physics. The detailed discussions of advanced turbulence problems should make it of interest to theoretical geophysicists in general." (Andrzej Icha, Pure and Applied Geophysics, Vol. 165, 2008)

Innehållsförteckning

Basic model assumptions.- Boundary layer models.- Numerics.- The GOTM model.- Idealised test cases.- Oceanic and limnic applications.- Future Perspectives.

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