Název: A hybrid boundary element based aeroelastic model for flexible wing.
Autoři: Prasad, Chandra Shekhar ; Pešek, Luděk
Typ dokumentu: Příspěvky z konference
Konference/Akce: International colloquium DYMAMESI 2020, Praha (CZ), 20200303
Rok: 2020
Jazyk: eng
Abstrakt: The paper describes development of medium delity aeroelastic numerical model for fast aeroelastic analysis of the flexible aeronautical structures e.g. wings, rotor blades etc. The numerical model is developed particularly for the incompressible low subsonic flow regime application. For the flow field modeling boundary element based hybrid panel method flow solver with viscous-inviscid coupling strategy have been successfully developed and implemented here.The unsteady flow field is modeled using hybrid/modi ed panel method where, integral boundary layer theory (vis-cous part), surface panel method (potential flow inviscid part) and vortex particle method (separated shear layer modeling) are coupled together. The proposed model can simulate both attached and separated flow fields. The estimated aerodynamic lift coefficients and the pressure coefficient are compared with experimental results for static and dynamic stall flow conditions. Furthermore, the results from new aeroelastic model will be compared with classical CFD-CSD based aeroelastic models for efficiency and accuracy check. The proposed methodology for the aeroelastic analysis of long exible aeronautical structure will provide researchers and engineers a fast, cost effective and efficient tool for aeroelastic analysis for different design at preliminary design stage where large numbers of design iteration are required within short time frame.
Klíčová slova: aeroelsticity; boundary layer method; flutter; panel method; reduce order model; vortex particle method
Číslo projektu: GA20-26779S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Dymamesi 2020, ISBN 978-80-87012-73-4

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/11104/0314830

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-432427


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