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On the visual growth of a turbulent mixing layer

Published online by Cambridge University Press:  19 April 2006

J. Jimenez
J. Jimenez
Affiliation:
IBM Scientific Center, Castellana 4, Madrid 1, Spain
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Abstract

Two models are discussed to account for the motion of the concentration interface in turbulent mixing layers. In the first one the interface is treated as a vortex sheet and its roll-up is studied. It is argued that this situation represents only the first stages of layer growth and another model is studied in detail in which a row of vortex cores entrains an essentially passive concentration interface with no vorticity. Both models give values of the spreading rate in approximate agreement with observations, and their relation is discussed.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 96 , Issue 3 , 13 February 1980 , pp. 447 - 460
Copyright
© 1980 Cambridge University Press

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