Pre-switching bifurcation of a slender jet

P AUDIER; D SCIAMMARELLA; G ARTANA

PHYSICS OF FLUIDS

AMER INST PHYSICS

Lugar: New York; Año: 2016 vol. 28 p. 17103 - 17103

1070-6631

In this work, we study the near-field of the jet flow exiting a slot-model with aspect ratio 7.5: 1. The core of the slender jet separates into two streams which subsequently merge recomposing a single core jet. Axis switching occurs downstream following self-similarity rules. In order to unveil the 3D dynamics of this pre-switching bifurcation, stereo-PIV (Particle Image Velocimetry) measurements are performed and a phase-locking technique is implemented using surface dielectric barrier discharge plasma actuators.