Simple integral model for trajectories of jet deflection in crossflow

Abstract

An integration method is developed based on mass and momentum conservation laws to predict trajectories of transverse jets in crossflow. The dominant mechanisms of jet deflections, namely, the jet ingestion and the drag force, are quantified. The evolution of the jet size is determined by modeling the growth of the counter-rotating vortex pair, bringing closure to the equation set. Results are compared with experimental data at different velocity ratios, density ratios, and turbulence intensity. Good agreements between predicted results and experimental data demonstrate the advantages of the proposed model over the commonly adopted correlation in prediction accuracy and generality.

Topics & Concepts