CFD Analysis of Rotor-Fuselage Aerodynamics based on a Sliding Mesh Algorithm

Steijl, R. , Barakos, G. and Badcock, K. (2007) CFD Analysis of Rotor-Fuselage Aerodynamics based on a Sliding Mesh Algorithm. In: 2nd European Conferences for Aeronautics and Space Sciences (EUCASS 2007), Brussels, Belgium, 1-6 July 2007,

Abstract

Rotor-fuselage interaction is central to the design and performance analysis of helicopters. However, regardless of its significance this problem is not well-studied and few CFD works have so far been published. In this paper, a method is put forward to allow CFD computations of rotor-fuselage problems using a sliding mesh to interface the rotor and fuselage regions. A sliding plane forms a boundary between a CFD mesh around the fuselage and a rotor-fixed CFD mesh which has to be rotated to account for the motion of the rotor blades. CFD meshes adjacent to a sliding plane do not necessarily have matching nodes or even the same number of cell-faces. This poses a problem of interpolation between CFD meshes and, in addition, the employed algorithms should have small CPU overhead. The properties of this method are assessed and validation results are presented for several flow cases

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Barakos, Professor George and Steijl, Dr Rene
• Authors: Steijl, R., Barakos, G., and Badcock, K.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Copyright Holders: Copyright © 2007 The Authors
• Publisher Policy: Reproduced with the permission of the authors