DGLR-Publikationsdatenbank - Detailansicht
Titel:
Open Issues in System Identification of CFD Based Aerodynamic Models for Aeroelastic Applications
Autor(en):
P. Lisandrin, G. Carpentieri, M. van Tooren
Zusammenfassung:
An investigation is carried over the weight of the non linear effects on the dynamical behavior of a profile in a transonic flow. The investigation is carried using the approach used in system identification, by means of a Computational Fluid Dynamics (CFD) code, based on the Euler equations, considered as a black-box system. Both frequency and time domain approaches are used to evaluate the non-linear effects on the response of different typical wing-sections. The results show that for weak shocks the aerodynamic operator describing the dynamics of the profile around a steady (transonic) flow condition is linear. For strong shocks results obtained with linear models show conservativism in the results.
Veranstaltung:
International Forum on Aeroelasticity and Structural Dynamics, 2005, München
Medientyp:
Conference Paper
Sprache:
englisch
Format:
21,0 x 29,7 cm, 14 Seiten
Veröffentlicht:
DGLR-Bericht, 2005, 2005-04, International Forum on Aeroelasticity and Structural Dynamics 2005; S.1-14; 2005; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn
Preis:
NA
ISBN:
ISSN:
Kommentar:
in getr. Zählung;
Klassifikation:
Stichworte zum Inhalt:
unsteady aerodynamics, preliminary design
Verfügbarkeit:
Bibliothek
Veröffentlicht:
2005
Dieses Dokument ist Teil einer übergeordneten Publikation:
International Forum on Aeroelasticity and Structural Dynamics 2005