Incompressible, turbulent boundary layers with arbitrary pressure gradients and divergent or convergent cross flows.

摘要: An effective viscosity hypothesis that has previously led to rather detailed predictions of equilibrium turbulent boundary layers is now applied with arbitrary mainstream pressure variations and divergent or convergent cross flows. The empirical content the involving three constants (one which von Karman constant) solely derived from constant profile data. present work similar previous in mean differential equations motion are integrated numerically. This time, however, one must deal partial instead ordinary applicable important result prediction skin-friction coefficient separation very good. For data considered, it apparent not restricted flows; a corollary can be related local velocity some reasonable but undetermined degree approximation. A further for particular three-dimensional, flow experiment measured cross-flow profiles agree those calculated using scalar viscosity.