| Issue |
EPJ Web of Conferences
Volume 92, 2015
EFM14 – Experimental Fluid Mechanics 2014
|
|
|---|---|---|
| Article Number | 02095 | |
| Number of page(s) | 10 | |
| Section | Contributions | |
| DOI | https://doi.org/10.1051/epjconf/20159202095 | |
| Published online | 06 May 2015 | |
https://doi.org/10.1051/epjconf/20159202095
Colliding wall-jets on a cylindrical surface
1 Institute of Thermomechanics v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
2 University of Technology and Life Sciences, Bydgoszcz, Poland
a Corresponding author: tesar@it.cas.cz
Published online: 6 May 2015
Paper discusses aerodynamics and potential engineering applications of an unusual and in literature practically unknown fluid flow configuration, with two wall-jets attached to a cylindrical surface so that they collide head-on and by mutual conjunction generate a single jet directed away from the wall. Applications are envisaged in pneumatic sensors, particularly those operating at low Reynolds numbers. Performed experimental investigation, combined with numerical flowfield computations, revealed several interesting aspects. The most interesting among them is the discovery of symmetry-breaking existence of three different stable flow regimes. This opens a possibility for fluidic tristable amplifiers and systems operating with ternary logic.
© Owned by the authors, published by EDP Sciences, 2015
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