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Transition in synthetic jets

  1. 1.
    0381069 - ÚT 2013 RIV NL eng J - Článek v odborném periodiku
    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
    Grant CEP: GA TA ČR(CZ) TA02020795; GA ČR(CZ) GPP101/12/P556; GA ČR(CZ) GCP101/11/J019
    Výzkumný záměr: CEZ:AV0Z20760514
    Klíčová slova: turbulence * synthetic jet * transition * velocity spectra
    Kód oboru RIV: BK - Mechanika tekutin
    Impakt faktor: 1.841, rok: 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.
    Trvalý link: http://hdl.handle.net/11104/0211617

     
     
Počet záznamů: 1