GEROS: A European Grid Generator for Rotorcraft Simulation Methods

摘要

A grid generator system for the modelling of complex multi-bladed rotors is under211u001edevelopment in Europe as a part of the development of a complete rotocraft 211u001esimulation method: the Brite/EuRam EROS project. The grid generator (1) exploits 211u001ea CHIMERA domain decomposition on structured grids. The development is being 211u001ecarried out by a rotorcraft manufacturers (Augusta, ECD, GKN-Westland), research 211u001ecenters (CIRA, DERA, DLR, NLR, ONERA), and Unversities (Polit. Milano, Univ. 211u001eGlasgow, Univ. Rome 3). It addresses the industrial need for a rotor aerodynamic 211u001eprediction tool (2) able to capture rotational phenomena, such as blade tip and 211u001ewake vortices, and to predict correctly the unsteady blade pressures over a range 211u001eof flight conditions, from hover to high-speed forward flight. This paper 211u001epresents and discusses the capabilities of the GEROS grid generator together with 211u001erelevant results.