| Issue |
EPJ Web of Conferences
Volume 45, 2013
EFM12 – Experimental Fluid Mechanics 2012
|
|
|---|---|---|
| Article Number | 01074 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/epjconf/20134501074 | |
| Published online | 09 April 2013 | |
https://doi.org/10.1051/epjconf/20134501074
Strangely behaving fluidic oscillator
1 Institute of Thermomechanics v.v.i., Academy of Sciences of Czech Rep., 182 00 Prague, Dolejškova 5, Czech Republic
2 University of Technology and Life Sciences in Bydgoszcz, Poland
Fluidic oscillators became recently of increasing importance for a number of applications. Two alternative variants have been known so far: (a) feedback-loop configurations, with Strouhal number invariance and (b) configurations with a resonator and frequency not dependent on flow rate. Authors tested an oscillator of seemingly quite conventional two-loop design. Surprisingly, its properties fit to neither of the two established categories. Its Strouhal number is not constant and the frequency of oscillation is flow-rate dependent. There is, so far, no reasonable physical explanation for this strange behaviour.
© Owned by the authors, published by EDP Sciences, 2013
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