J. Bain, L.N. Sankar, T.A. Egolf, R.J. Flemming, R.E. Kreeger

A framework has been developed for computationally modelling the effects of ice accretion on a helicopter rotor. In this approach, the ice accretion models, the flow solver, the grid generator, and the aeroelastic analyses exchange data using open I/O standards. In two-dimensional compressible flow, a one-way coupling between the ice accretion modelling (LEWICE3D) and the flow analysis (OVERFLOW) in predicted the ice shape with reduced ice thickness. The double horn ice shape is correctly predicated as the angle-of-attack and liquid water content increases. Subsequent 3-D simulations have also been performed where LEWICE3D is coupled to TURNS, a flow analysis for modelling rotors in hover. Results are presented for the UH-60A Blackhawk Rotor to assess the effects of ice growth on the rotor power at constant thrust.

35th European Rotorcraft Forum 2009,

Conference Paper

englisch

21,0 x 29,7 cm, 7 Seiten

DGLR-Bericht, 2009, 2009-03, 35th European Rotorcraft Forum 2009 - Conference Proceedings; S.1-7; 2009; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

ice, rotors, rotorcrafts

Bestellbar

2009