The effects of pressure gradients on turbulent flow near a smooth wall
作者： George L. Mellor
DOI: 10.1017/S0022112066000624
关键词: Viscosity 、 Pressure gradient 、 Adverse pressure gradient 、 Turbulence 、 Mechanics 、 Boundary layer 、 Laminar sublayer 、 Physics 、 Flow separation 、 Turbulent diffusion
摘要: A dimensional argument is presented leading to a functional form for the effective viscosity which embraces hypothesis of previous paper (Mellor & Gibson 1966; hereafter referred as A) in defect portion turbulent boundary layer. The new also suggests way determining viscous sublayer when flow subjected mainstream pressure gradients.It will be shown that large wall-velocity profiles and defect-velocity automatically overlap, even absence logarithmic portion. It further equilibrium flows are uniquely determined by β R.
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