ON THE MIXING FLOW STRUCTURE OF A TURBULENT CROSS JET

An experimental study on the structure of a turbulent cross jet mixing flow is presented. Diffusion rates, two and three dimensional flow structures, mean velocities, turbulence intensities and turbulent shear stresses of the mixing flow were measured as varying the velocity ratio. Self-similar forms for the dimensionless mean velocity and turbulent shear stress profiles were found, particularly a semi-empirical curve for the turbulent shear stresses was obtained by correlating the measurement data resulting a remarkable agreement. It was found that the deviation gradient(alpha) is linearly correlated with the velocity ratio(R), and the cross section of the mixing flow is an elliptic form.