Název: PASSIVE CONTROL OF BOUNDARY LAYER TRANSITION AND SEPARATION
Autoři: Popelka, Lukáš ; Matějka, M. ; Šimurda, David ; Součková, Natálie
Typ dokumentu: Příspěvky z konference
Konference/Akce: International Conference Experimental Fluid Mechanics 2010, Liberec (CZ), 2010-11-24 / 2010-11-26
Rok: 2010
Jazyk: eng
Abstrakt: Particle Image Velocimetry, smoke-wire, tuft filaments and oil-flow visualization techniques were used for wind-tunnel and in-flight investigation of boundary layer separation, both stall and separation bubbles, related to the low-Reynolds number transition mechanism. Airfoils of three Czech-designed sailplanes and their wing-fuselage interaction were subject to study. Experimental data were coupled with numerical modeling and synthesis gained. Effect of passive flow control devices - vortex generators - was surveyed, counter-rotating vortex generators and Zig-zag type turbulators were applied. Separation suppression was reached and consequent drag coefficient reduction of test aircrafts measured in flight. Investigation was further extended by PIV Time-Resolved technique.
Klíčová slova: airfoils and wings; CFD and experiment synthesis; passive flow control
Číslo projektu: CEZ:AV0Z20760514 (CEP), 1M06031 (CEP), IAA200760614 (CEP), GA103/09/0977 (CEP), GA101/08/1112 (CEP)
Poskytovatel projektu: GA MŠk, GA AV ČR, GA ČR, GA ČR
Zdrojový dokument: International Conference Experimental Fluid Mechanics 2010, ISBN 978-80-7372-670-6

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0192587

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-42315


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference