An experimental investigation regarding interacting shear layers in a coaxial jet geometry has been performed. The present paper confirms experimentally the theoretical result by Talamelli and Gavarini (2006), who proposed that the wake behind the separation wall between the two stream of a coaxial jet creates the condition for an absolute instability. This instability, by means of the induced vortex shedding, may provide a continuous forcing mechanism for the control of the flow field. The potential of this passive mechanism as an easy, effective and practical way to control the near-field of interacting shear layers has been demonstrated.

Örlü R., Segalini A., Alfredsson P.H., Talamelli A. (2008). Passive control of mixing in a coaxial jet. CIPRO : s.n.

Passive control of mixing in a coaxial jet

SEGALINI, ANTONIO;TALAMELLI, ALESSANDRO
2008

Abstract

An experimental investigation regarding interacting shear layers in a coaxial jet geometry has been performed. The present paper confirms experimentally the theoretical result by Talamelli and Gavarini (2006), who proposed that the wake behind the separation wall between the two stream of a coaxial jet creates the condition for an absolute instability. This instability, by means of the induced vortex shedding, may provide a continuous forcing mechanism for the control of the flow field. The potential of this passive mechanism as an easy, effective and practical way to control the near-field of interacting shear layers has been demonstrated.
2008
Proc. of 7th Int. ERCOFTAC Symp. on Engineering Turbulence Modelling and Measurements (ETMM7)
450
455
Örlü R., Segalini A., Alfredsson P.H., Talamelli A. (2008). Passive control of mixing in a coaxial jet. CIPRO : s.n.
Örlü R.; Segalini A.; Alfredsson P.H.; Talamelli A.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/74054
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