Počet záznamů: 1
A Parametric Study of Flapped Airfoil Lift Enhancement by Vortex Generators
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SYSNO ASEP 0368167 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název A Parametric Study of Flapped Airfoil Lift Enhancement by Vortex Generators Tvůrce(i) Součková, Natálie (UT-L)
Popelka, Lukáš (UT-L)
Matějka, M. (CZ)
Šimurda, David (UT-L) RID, ORCIDCelkový počet autorů 4 Zdroj.dok. Technical Soaring - ISSN 0744-8996
Roč. 35, č. 4 (2011), s. 125-134Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova passive flow control ; vizualizationnu ; numerical simulation Vědní obor RIV BK - Mechanika tekutin CEP 1M06031 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy IAA2076403 GA AV ČR - Akademie věd GA101/08/1112 GA ČR - Grantová agentura ČR CEZ AV0Z20760514 - UT-L (2005-2011) Anotace This paper focuses on a suppression of the flow separation, which occurs on a deflected flap, by means of vortex generators (VGs). An NACA 63A421 airfoil with a simple flap and vane-type vortex generators wasere used. The investigation was carried out by using experimental and numerical methods. The data from the numerical simulation of the flapped airfoil without VGs control were used for the vortex generator design. Two different sizes and shapes, along with various spacingsspacing of the vortex generators, were tested. The flow past the airfoil was visualized withthrough two methods, namely tuft filaments technique and oil-flow visualization. The experiments were performed in closed circuit wind tunnels with closed and open test sections. The lift curves for both cases without and with vortex generators were acquired for the determination of the lift coefficient improvement. The improvement was achieved for several cases by means all of all the applied methods. 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 2012
Počet záznamů: 1