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Variable Fidelity Optimization of Required Power of Rotor Blades: Investigation of Aerodynamic Models and their Application

Wilke, Gunther (2012) Variable Fidelity Optimization of Required Power of Rotor Blades: Investigation of Aerodynamic Models and their Application. 38th European Rotorcraft Forum 2012, 04-07 Sep 2012, Amsterdam, Netherlands.

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Kurzfassung

An investigation of aerodynamic models with varying fidelity is performed with respect to the required power for different rotor blade geometries. Concluding from this nvestigation low, mid and high fidelity methods are selected. For hover these comprise a finite state inflow model, Euler computations on coarse meshes and highly resolved RANS computations, both with periodic boundaries. For forward flight, a prescribed wake model, single bladed Euler computations and a Chimera setup for RANS computations are selected. A comparative study between between single fidelity and variable fidelity surrogate based optimization is performed, where resource savings of up to 64.8% are seen for forward flight optimizations.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Variable Fidelity Optimization of Required Power of Rotor Blades: Investigation of Aerodynamic Models and their Application
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Wilke, GuntherAS
Datum:7 September 2012
Status:veröffentlicht
Stichwörter:variable fidelity optimization, BET, CFD, Surrogates, Kriging, VFM, Optimization, Rotor, Hover, Forward Flight
Veranstaltungstitel:38th European Rotorcraft Forum 2012
Veranstaltungsort:Amsterdam, Netherlands
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:04-07 Sep 2012
Veranstalter :NLR
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Drehflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L RR - Drehflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Der virtuelle Drehflügler
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik
Hinterlegt von: Gunther Andreas Wilke
Hinterlegt am:02 Nov 2012 14:34
Letzte Änderung:12 Dez 2013 21:48

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