Interaction between Wall Jet and Offset Jet with Different Velocity and Offset Ratio

Realizable k-ɛ model was used to study the flow and mixing characteristics of the interaction between wall jet and offset jet with different combination of offset ratio and velocity ratio. As the velocity ratio (Uw/Uo) increasing, the flow pattern shifts from offset jet to wall jet and the decay of maximum velocity gradually becomes slowly. The maximum concentration (Cm/C0) decreases with the downstream distance increasing and the decay rate correlates with the difference of two jet velocities. These results can be employed in the engineering application for wastewater discharge.