M. Dietz, O. Dieterich

The present paper describes recent developments in the application of aeroelastic rotor CFD at Eurocopter. The aeromechanic tool environment is presented and applied to an isolated rotor in forward flight. A weak coupling methodology between CFD and comprehensive rotor codes is applied in order to trim the rotor towards prescribed trim objectives and thus to allow for a meaningful comparison of the computational results to flight test data. The block-structured CFD code FLOWer (DLR) is used for the aerodynamic simulation. The flight mechanics and rotor dynamics simulation is carried out using a Eurocopter in-house rotor code and the comprehensive code CAMRAD II. The weak coupling interface between FLOWer and CAMRAD II has been recently developed and will thus be described in more detail. The coupled computational results are compared to flight test data. The comparison is carried out with respect to rotor performance and blade loads. Finally an outlook will be given on the planned future extension of the coupling interface for complete helicopter simulation and trim.

35th European Rotorcraft Forum 2009,

Conference Paper

englisch

21,0 x 29,7 cm, 17 Seiten

DGLR-Bericht, 2009, 2009-03, 35th European Rotorcraft Forum 2009 - Conference Proceedings; S.1-17; 2009; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

computational fluid dynamics, rotors, aeroelastics, rotorcrafts

Bestellbar

2009