The Computation of a Two-Dimensional Turbulent Wall Jet in an External Stream

Abstract

An extended expression for the primary turbulent shear stress combined with an algebraic Reynolds-stress model is applied to the computation of a two-dimensional turbulent wall jet. This model predicts the region with negative production of turbulent kinetic energy between the points of maximum velocity and vanishing shear stress, which is a characteristic feature of turbulent wall jets. The computed results are compared with measurements and results obtained with a k-ε model and a full Reynolds-stress closure.