ERF Document Repository

Aerodynamic investigation of rotor / propeller interactions on a fast rotorcraft

Show simple item record Boisard, R. 2021-03-04T15:52:46Z 2021-03-04T15:52:46Z 2018
dc.identifier.other 13 - Aerodynamic Investigation of Rotor Propeller Interactions on a Fast Rotorcraft.pdf
dc.description.abstract During the past few years, different concepts of fast rotorcraft have appeared. Most of them rely on additional propellers (usually one or two of them) to ensure the propulsive force at high speed in order to be able to slow down the main rotor rotating speed. On such configuration, the propellers are in strong interaction with the main rotor wake which affects their performances and the aircraft maneuverability. The present work numerically investigates the aerodynamic of the rotor / propeller interaction on rotorcraft similar to the Racer from Airbus Helicopters. By using two different levels of modeling it is shown that at high advance ratio, a simple free wake model is perfectly able to give most of the interaction effects, while in hover, a full CFD unsteady computation may be necessary to capture all the unsteadiness of the interaction. This paper also outlines the different behavior of the propeller while it is fully inside the rotor wake or out of if, and therefore the need for a precise control of the rotorcraft in the transition between hover to fast forward flight.
dc.language.iso en
dc.title Aerodynamic investigation of rotor / propeller interactions on a fast rotorcraft

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search Repository

Advanced Search


My Account