Original title: PIV and LIF study of slot continuous jet at low Reynolds number
Authors: Broučková, Zuzana ; Hsu, S.-S. ; Wang, A. B. ; Trávníček, Zdeněk
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2015 /10./, Praha (CZ), 2015-11-17 / 2015-11-20
Year: 2015
Language: eng
Abstract: This study deals with a continuous jet issuing from a small narrow slot with a width of 0.36 mm. The experimental arrangement is based on the piezoelectric synthetic jet actuator studied previously for easy comparisons. The working fluid is water at room temperature. The experiments were performed using methods of particle image velocimetry (PIV) and flow visualization (laser induced fluorescence, LIF). The time-mean volume flux through the exit nozzle was quantified using precise scales. The mean velocity and the Reynolds number were evaluated as Um = 0.12 m/s and Re = 90, respectively. The results of LIF and PIV techniques revealed the three-dimensional character of the flow field, namely the saddle-shape velocity profiles. This behavior is typical for steady jets from a rectangular nozzle. The obtained results were compared with previous measurements of the synthetic jet issuing from the same cavity and the slot nozzle.
Keywords: continuous jet; particle image velocimetry; slot jet
Project no.: GA14-08888S (CEP)
Funding provider: GA ČR, MOST/14/001
Host item entry: Experimental Fluid Mechanics 2015

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0254890

Permalink: http://www.nusl.cz/ntk/nusl-201369


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Research > Institutes ASCR > Institute of Thermomechanics
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