Number of the records: 1
Transition in synthetic jets
- 1.0381069 - ÚT 2013 RIV NL eng J - Journal Article
Tesař, Václav - Kordík, Jozef
Transition in synthetic jets.
Sensors and Actuators A - Physical. Roč. 187, NOV 2012 (2012), s. 105-117. ISSN 0924-4247. E-ISSN 1873-3069
R&D Projects: GA TA ČR(CZ) TA02020795; GA ČR(CZ) GPP101/12/P556; GA ČR(CZ) GCP101/11/J019
Institutional research plan: CEZ:AV0Z20760514
Keywords : turbulence * synthetic jet * transition * velocity spectra
Subject RIV: BK - Fluid Dynamics
Impact factor: 1.841, year: 2012
http://www.sciencedirect.com/science/article/pii/S0924424712005031
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.
Permanent Link: http://hdl.handle.net/11104/0211617
Number of the records: 1