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Rapid-distortion turbulence models in the theory of surface-wave generation

Published online by Cambridge University Press:  26 April 2006

Cornelis A. Van Duin
Cornelis A. Van Duin
Affiliation:
Department of Oceanography, Royal Netherlands Meteorological Institute, 3730 AE De Bilt, The Netherlands
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Abstract

Turbulent air flow over a surface gravity wave of small amplitude is studied analytically on the basis of a family of rapid-distortion turbulence models. Results for the wave growth rate do not depend sensitively on the specific choice of these models. However, the agreement with results based on a so-called truncated mixing-length model (Belcher & Hunt 1993) is poor, despite physical similarity of the models. The present analysis also shows that the use of turbulence models based on rapid-distortion theory leads to significant underestimation of observed growth rates of high-frequency waves.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 329 , 25 December 1996 , pp. 147 - 153
Copyright
© 1996 Cambridge University Press

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