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The new airfoil model NACA0015, modal analysis and flutter properties
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SYSNO ASEP 0475178 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The new airfoil model NACA0015, modal analysis and flutter properties Tvůrce(i) Kozánek, Jan (UT-L) RID
Vlček, Václav (UT-L) RID
Zolotarev, Igor (UT-L) RIDZdroj.dok. Applied Mathematical Modelling. - : Elsevier - ISSN 0307-904X
Roč. 46, June (2017), s. 698-706Poč.str. 9 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova aeroelasticity ; subsonic flow ; self-excited vibration ; modal analysis ; kinematics Vědní obor RIV BI - Akustika a kmity Obor OECD Applied mechanics Institucionální podpora UT-L - RVO:61388998 UT WOS 000403742000047 EID SCOPUS 85019985957 DOI 10.1016/j.apm.2017.023.039 Anotace The experimental airfoil model NACA0015 was used to study aeroelastic phenomena during self-excited profile vibration. It provides data for control of aeroelastic calculation programs at subsonic speeds of the stream. The model movability is two-dimensional with two-degree of freedom dynamic system, one in pitch and the second in plunge, and is proposed to be a dynamic system having two near corresponding eigenfrequencies. To quantitatively evaluate flow field using interferometry, a special test section design and profile was constructed. It utilized a large visual field for the optical system together with the option of changing support stiffness for both degrees of freedom. In this paper experimental results from the range of Reynolds numbers Re = (2.63–2.83) 10^5 are published. The identified eigenvalues and eigenmodes for zero flow velocity are compared with measured flutter properties (frequency, modes and time evolutions) of the airfoil.
Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2018 Elektronická adresa http://www.sciencedirect.com/science/article/pii/S0307904X1730135X
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