Počet záznamů: 1

Infrared Thermography as a Visualization Tool of Flow Control by Vortex Generators

  1. 1.
    0351444 - UT-L 2011 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
    Součková, Natálie - Kuklová, J. - Popelka, Lukáš - Matějka, M.
    Infrared Thermography as a Visualization Tool of Flow Control by Vortex Generators.
    Colloquium Fluid Dynamics 2010: Proceedings. Prague: Institute of Thermomechanics AS CR, v. v. i., 2010 - (Jonáš, P.; Uruba, V.), s. 1-9. ISBN 978-80-87012-27-7.
    [Colloquium Fluid Dynamics 2010. Praha (CZ), 20.10.2010-22.10.2010]
    Grant CEP: GA MŠk(CZ) 1M06031; GA ČR GAP101/10/1230; GA ČR GA101/08/1112; GA ČR GA103/09/0977
    Výzkumný záměr: CEZ:AV0Z20760514
    Klíčová slova: infrared thermography visualization * vortex generators * flow control
    Kód oboru RIV: JU - Aeronautika, aerodynamika, letadla

    This paper focuses on a suppression of the flow separation, which occurs on a deflected flap, by means of vortex generators (VG's). An airfoil NACA 63A421 with a simple flap and vane-type vortex generators were used. The investigation was carried out by using experimental and numerical methods. The data from the numerical simulation of the flapped airfoil without VG's control were used for the vortex generator design. Two sizes, two different shapes and various spacing of the vortex generators were tested. The flow past the airfoil was visualized through two methods, namely oil and infrared thermography visualization. The lift curves for both cases without and with vortex generators were acquired for a lift coefficient improvement determination. . The experiments were performed in closed circuit wind tunnels with open and close test sections. The improvement was achieved for several cases by means all of the applied methods.
    Trvalý link: http://hdl.handle.net/11104/0191198