Original title: Colliding wall-jets on a cylindrical surface
Authors: Tesař, Václav ; Peszyński, K.
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2014, Český Krumlov (CZ), 2014-11-18 / 2014-11-21
Year: 2015
Language: eng
Abstract: 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 colliding head-on and generating a single jet directed away. Applications are seen in pneumatic sensors, particularly operating at low Reynolds numbers. Performed experimental investigation combined with numerical flowfield computations revealed several interesting aspects of this flowfield. 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 control systems operating with ternary logic.
Keywords: jet collision; tristability; wall jet
Project no.: GA13-23046S (CEP)
Funding provider: GA ČR
Host item entry: EFM14 - EXPERIMENTAL FLUID MECHANICS 2014, ISSN 2100-014X

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/11104/0242221

Permalink: http://www.nusl.cz/ntk/nusl-180389


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers