Turbulent boundary layer response to the introduction of stable stratification
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Turbulent boundary layer response to the introduction of stable stratification
  • Published Date:

    2017

  • Source:
    Journal of Fluid Mechanics, 811, 569-581.
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Turbulent boundary layer response to the introduction of stable stratification
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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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