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Progress towards the CFD Computation of the complete Helicopter: Recent results obtained by research centers in the framework of the franco-german Chance Project

Sidès, J.; ONERA and Pahlke, K. (2002) Progress towards the CFD Computation of the complete Helicopter: Recent results obtained by research centers in the framework of the franco-german Chance Project. CEAS Aerospace Aerodynamics Research Conference, Cambridge (uk), 10.-12.06.2002.

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Abstract

This paper describes progress achieved by the research centers (DLR, ONERA, IAG/Stuttgart) in the framework of the long-term Franco-German CHANCE research project for the CFD of the complete helicopter accounting for trim and blade dynamics. The new developments that are surveyed are mainly devoted to: Improvements carried out in order to improve the robustness and the accuracy of the overlapping grid approach (Chimera method): treatment and orphan points for complex geometries, wall treatment for Navier-Stokes computations. Simplification of structured grid generation and adaptation to the solution using either automatic partitioning of overset grids or patched grids. First results for a better resolution of vortices using an automatic vorticity confinement procedure. Application of quasi-steady RANS approach for rotor-fuselage interaction with actuator disk modelling. New developments on fluid-structure coupling with emphasis on the coupling between unsteady Navier-Stokes CFD solvers and dynamic codes for the prediction of performance of main rotors in forward flight.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Progress towards the CFD Computation of the complete Helicopter: Recent results obtained by research centers in the framework of the franco-german Chance Project
Authors:
AuthorsInstitution or Email of Authors
Sidès, J.; ONERAUNSPECIFIED
Pahlke, K.UNSPECIFIED
Date:2002
Page Range:71.1-71.14
Status:Published
Keywords:CFD methods, rotor-fuselage-interaction, isolated rotor, forward flight, elastic blades, weak fluid-structure coupling, strong fluid-structure coupling, viscous flows, Navier-Stokes equations, chimera technique, vorticity confinement, actuator disk
Event Title:CEAS Aerospace Aerodynamics Research Conference, Cambridge (uk), 10.-12.06.2002
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:05

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