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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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)|
|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|
|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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