Experimental and theoretical investigation of turbulent asymmetric shear-layer interaction in a two-dimensional smooth-wall passage

Strong interaction of turbulent asymmetric shear layers in a smooth-wall passage has been studied experimentally and theoretically. It is shown that turbulent quantities are strongly affected by the interaction. Mean velocity profiles are well described by known algebraic expressions. A semi-empirical interaction model is proposed, which makes use of a hypothetical 'reference' (external) flow with total pressure losses. Balance of the integral momentum and mean kinetic energy equations is excellent. An integral calculation procedure making use of the proposed model gives results in good agreement with the experimental data.