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Quasi-Similarity Model of Synthetic Jets
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SYSNO ASEP 0318605 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Quasi-Similarity Model of Synthetic Jets Title Kvazi-podobnostní model syntetických proudů Author(s) Tesař, Václav (UT-L) RID
Kordík, Jozef (UT-L) RIDSource Title Sensors and Actuators A - Physical. - : Elsevier - ISSN 0924-4247
Roč. 149, č. 2 (2009), s. 255-265Number of pages 11 s. Publication form www - www Language eng - English Country CH - Switzerland Keywords jets ; synthetic jets ; similarity solution Subject RIV BK - Fluid Dynamics R&D Projects IAA200760705 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA101/07/1499 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000263620200014 DOI 10.1016/j.sna.2008.11.017 Annotation Paper introduces a simple model - in the form of ordinary differential equations - for evaluation of spatial distributions of various quantities of interest in synthetic jets. It uses one-equation model of turbulence and the Tollmien hypothesis of the length scale of the vortices. Experiments show that a constant in the model varies with the streamwise distance from the nozzle. This variation leads to the new concept of quasisimilarity. An interesting fact is a sudden change in the character of the dependence at a distance of 30 nozzle diameters. 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 2009
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