R. Steijl, M. Woodgate, G. Barakos

A demonstration of the Helicopter Multi-Block CFD solver for the analysis of smart rotors equipped with trailing edge flaps is presented in this paper. The requirement for CFD analysis of smart rotors sets new standards for the efficiency and flexibility of the CFD solvers. Accordingly, the core solver and data structure of HMB had to be revised and upgraded. The mesh deformation and motion algorithm of the solver was also modified to allow for the complex actuation of active blade elements in conjunction with the blade control inputs and aeroelastic deflections. The method has been demonstrated for a four-bladed model rotor equipped with trailing edge flaps and the results showed good convergence behaviour and interesting flow physics. This work highlighted the requirement for experimental data for the validation of such complex CFD tools. With world-wide interest in flapped rotors, a need is now emerging for adequate experiments to complement the development of high-fidelity predictive CFD tools.

35th European Rotorcraft Forum 2009,

Conference Paper

englisch

21,0 x 29,7 cm, 11 Seiten

DGLR-Bericht, 2009, 2009-03, 35th European Rotorcraft Forum 2009 - Conference Proceedings; S.1-11; 2009; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

computational fluid dynamics, rotors, rotorcrafts

Bestellbar

2009