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Turbulent boundary layer response to the introduction of stable stratification
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2017
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Source: Journal of Fluid Mechanics, 811, 569-581.
[PDF-8.74 MB]
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Journal Title:Journal of Fluid Mechanics
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Description:The response of an initially neutral rough-wall turbulent boundary layer to a change in wall temperature is investigated experimentally. The change causes a localized peak in stable stratification that diffuses and moves away from the wall with downstream distance. The streamwise and wall-normal components of turbulent velocity fluctuations are damped at similar rates, even though the stratification only directly impacts the wall-normal component. The Reynolds shear profiles reveal the growth of an internal layer that scales approximately with the bulk Brunt–Väisälä frequency.
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Source:Journal of Fluid Mechanics, 811, 569-581.
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Rights Information:Accepted Manuscript
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