W. Khier

A detailed comparison between blind time-accurate RANS simulation of the GOAHEAD configuration and wind tunnel results is presented. The computational model refers to a wind tunnel complete helicopter model, featuring a 4.1 m NH90 fuselage model, ONERA 7AD main rotor, reduced scale BO105 tail rotor, a rotor hub, a strut and slip ring fairing inside the 8m x 6m test section of the DNW low-speed wind tunnel. The flow solver, FLOWer, was weakly coupled to the flight mechanics tool HOST to predict the elastic deformation of the main rotor blades. The flight conditions correspond to cruise flight at Ma=0.204 and fuselage attitude [alpha]=-2o. The comparisons with the blind computations revealed broadly good to very good agreement with experiment.

35th European Rotorcraft Forum 2009,

Conference Paper

englisch

21,0 x 29,7 cm, 15 Seiten

DGLR-Bericht, 2009, 2009-03, 35th European Rotorcraft Forum 2009 - Conference Proceedings; S.1-15; 2009; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

numerische simulation, air flow, rotorcrafts

Bestellbar

2009