0381078 - ÚT 2013 RIV US eng J - Journal Article
Trávníček, Zdeněk - Broučková, Zuzana - Kordík, Jozef
Formation Criterion for Axisymmetric Synthetic Jets at High Stokes Numbers.
AIAA Journal. Roč. 50, č. 9 (2012), s. 2012-2017. ISSN 0001-1452. E-ISSN 1533-385X
R&D Projects: GA AV ČR(CZ) IAA200760801; GA ČR(CZ) GCP101/11/J019
Institutional research plan: CEZ:AV0Z20760514
Keywords : synthetic jet * power spectral density * hot-wire anemometry
Subject RIV: BK - Fluid Dynamics
Impact factor: 1.080, year: 2012
http://arc.aiaa.org/doi/abs/10.2514/1.J051649

The paper is an experimental investigation of the formation criterion of synthetic jets in the Stokes number range of 73 to 292. The working fluid is air. Considering the slug flow model, the criterion is quantified using the hot-wire anemometry. Two evaluation methods are used based on the power characteristics and the power spectrum online observation. The formation criterion is correlated in terms of the Reynolds-Stokes number relationship. Alternatively, it is quantified using the critical stroke length, which systematically decreases from 0.6 to 0.3 as the Stokes number increases from 73 to 292.
Permanent Link: http://hdl.handle.net/11104/0211625