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Transition in synthetic jets
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SYSNO ASEP 0381069 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Transition in synthetic jets Author(s) Tesař, Václav (UT-L) RID
Kordík, Jozef (UT-L) RIDSource Title Sensors and Actuators A - Physical. - : Elsevier - ISSN 0924-4247
Roč. 187, NOV 2012 (2012), s. 105-117Number of pages 13 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords turbulence ; synthetic jet ; transition ; velocity spectra Subject RIV BK - Fluid Dynamics R&D Projects TA02020795 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) GPP101/12/P556 GA ČR - Czech Science Foundation (CSF) GCP101/11/J019 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000311477100016 DOI 10.1016/j.sna.2012.08.021 Annotation Experimental data on axisymmetric synthetic jets from Stokes number Sk = 11.5 to 108.8 are analysed using quasi-similarity transformation of governing equations involving one-equation model of turbulence. Velocity spectra reveal a change associated with transition in turbulence. In a search for a rule governing the transition, the vortices in the organised part of the synthetic jets were modelled as spherical objects. It is found that the transition occurs at the axial distance from the nozzle equal to ~10 diameters of these objects. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2013
Number of the records: 1