Planar Free Turbulent Mixing With an Axial Pressure Gradient

Abstract

An analysis of incompressible free turbulent mixing processes considering either a velocity defect or excess and both favorable and adverse pressure gradients is presented. The full nonsimilar flow field is treated directly by employing a linearized approximation to the momentum equation in the von Mises plane with the total pressure as the dependent variable. A “universal” solution results which can be used to determine the velocity field for any particular pressure gradient by simple algebraic manipulation. Satisfactory agreement with experimental data is shown, and some parametric studies of pressure gradient effects are presented.