Abstract
A one-equation turbulence model simulating the wall region is applied to study the equilibrium boundary layers. In these layers a universal mixing-length distribution can be assumed, as shown in the experiments of East and Sawyer. Particular emphasis is placed on representing accurately the turbulence-energy balance in the viscous and buffer regions, where an explicit model of the pressure-work term is shown to be necessary. Comparisons with experimental results of the mean quantities in the near-wall region are presented. Analysis of the turbulence-energy balance shows a behavior in qualitative agreement with that described by Shubauer. The same initial conditions have been assumed for the whole range of favorable and adverse pressure gradients considered. The free-stream pressure gradient influences the mean quantities and the turbulence-energy balance in a manner that is in agreement with experiment.
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© 1985 Plenum Press, New York
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Orlandi, P. (1985). Model of Low-Reynolds-Number Wall Turbulence for Equilibrium Layers. In: Casci, C., Bruno, C. (eds) Recent Advances in the Aerospace Sciences. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4298-4_8
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DOI: https://doi.org/10.1007/978-1-4684-4298-4_8
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