Abstract
We propose a new method for controlling the outflow of a fully turbulent annular jet based on the cross-flow injection of secondary jets. Details are provided on an in-house designed nozzle with a specific geometry that causes an attachment of the annular jet to the nozzle cone when cross-flow injection is applied. When this cross injection is suddenly taken away, the nozzle attached jet evolves toward a stable wall jet. Time-resolved stereo particle image velocimetry measurements are used to characterize the three different flow patterns (annular, nozzle attached, and wall jet) and the aim of this investigation is to gain a deeper understanding into the physics of the transition from the nozzle attached jet to the wall jet.
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