Turbulent spots in channel flows (Q1321022)
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scientific article; zbMATH DE number 561439
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Turbulent spots in channel flows |
scientific article; zbMATH DE number 561439 |
Statements
Turbulent spots in channel flows (English)
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8 May 1994
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A number of investigations into the formation and development of turbulent spots in plane Poiseuille, plane Couette and watertable flows are reviewed. Three main observations are drawn from this work. Firstly, the initial development is associated with the transient growth due to the three-dimensional lift-up effect. Secondly, the spreading and propagation velocities of the different spots are quite similar. Thirdly, the velocity field inside the spots shows essentially all the characteristics of fully developed turbulent flow, albeit at low Reynolds numbers.
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stability calculations
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plane Couette flow
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plane Poiseuille flow
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watertable flows
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three-dimensional lift-up effect
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spreading
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