Prediction of the Three-Dimensional Velocity Field of a Deflected Turbulent Jet

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Abstract
The paper describes the results of a finite-difference solution for the three-dimensional flow field generated by a round turbulent jet deflected by a main stream normal to the jet axis. The Reynolds stresses in the time-averaged momentum equations are calculated by a “two-equation turbulence model” in which differential equations are solved for the kinetic energy of turbulence and for the rate of its dissipation. The solution procedure employs an elliptic finite-difference scheme with the three velocity components and the pressure as the main dependent variables. Results are presented for the cases in which the ratio of the jet velocity to the main-stream velocity ranges from 2 to 10. The numerical predictions are shown to agree well with available experimental data.

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