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EFFECT OF VORTEX GENERATORS ON FLOW CONDITIONS OF AIRFOIL WITH DEFLECTED FLAP
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SYSNO ASEP 0351475 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title EFFECT OF VORTEX GENERATORS ON FLOW CONDITIONS OF AIRFOIL WITH DEFLECTED FLAP Author(s) Součková, Natálie (UT-L)
Popelka, Lukáš (UT-L)
Matějka, M. (CZ)
Šimurda, David (UT-L) RID, ORCIDNumber of authors 4 Source Title 21st International Symposium on Transport Phenomena. - Kaohsiung City : National Kaohsiung University of Applied Sciences, 2010 - ISBN 978-986-6184-25-3 Pages s. 16-24 Number of pages 8 s. Action International Symposium on Transport Phenomena /21./ Event date 02.11.2010-05.11.2010 VEvent location Kaohsiung City Country TW - Taiwan, Province of China Event type WRD Language eng - English Country TW - Taiwan, Province of China Keywords vortex generators ; airfoil ; flap Subject RIV JU - Aeronautics, Aerodynamics, Aircrafts R&D Projects 1M06031 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA101/08/1112 GA ČR - Czech Science Foundation (CSF) GAP101/10/1230 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation This paper focuses on a suppression of the flow separation, which occurs on a deflected flap, by means of vortex generators (VGs). 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 VGs 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 tuft filaments technique and oil visualization. The experiments were performed in closed circuit wind tunnels with closed and open test sections. The lift curves for both cases with and without vortex generators were acquired for the determination of the lift coefficient improvement. The improvement was achieved for several cases by means all of the applied methods. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2011
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