Počet záznamů: 1  

Unsteady aerodynamic forces measured on a fluttering profile

  1. 1.
    0431885 - ÚT 2015 RIV CZ eng J - Článek v odborném periodiku
    Vlček, Václav - Zolotarev, Igor - Kozánek, Jan
    Unsteady aerodynamic forces measured on a fluttering profile.
    Engineering Mechanics. Roč. 21, č. 2 (2014), s. 91-96. ISSN 1802-1484
    Grant CEP: GA ČR GA13-10527S
    Institucionální podpora: RVO:61388998
    Klíčová slova: aeroelastic experiments * self-excited vibrations * wind tunnel * interferometry
    Kód oboru RIV: BI - Akustika a kmity

    The study presents evaluation of optical measurements of the air flow field near the fluttering profile NACA0015 with two-degrees of freedom, Mach number of the flutter occurrence were M=0.21 and M=0.45. Aerodynamic forces (drag and lift components) were evaluated independently on the upper and lower surfaces of the profile. Using the mentioned decomposition, the new information about mechanism of flutter properties was obtained. The forces on the upper and lower surfaces are phase shifted and are partially eliminated as a result of the circulation around the profile. The cycle changes of these forces cause the permanent energy contribution from the airflow to the vibrating system.
    Trvalý link: http://hdl.handle.net/11104/0239266

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.