21st AIAA Applied Aerodynamics Conference · 2003 · 23 citations · 12 references
EngineeringAerospace EngineeringMechanical EngineeringAerodynamicsComputational Fluid DynamicsFluid DynamicsAerodynamic DesignAerodynamic TestingComputational AerodynamicsExperimental AerodynamicsCfd SimulationComputational Fluid Dynamics For High-lift SystemsComputational Fluid Dynamics ValidationHigh FlowsHigh-lift AerodynamicsHigh-lift AirfoilsHigh-lift Performance PredictionReynolds-averaged Navier-stokes Equations
The assessment of Reynolds-Averaged Navier-Stokes (RANS) codes within the European high lift programme EUROLIFT is outlined. The main objective of these studies is to validate and test numerical methods for the prediction of high lift flows for transport aircraft configurations. The focus is laid on 3D computations, which are accompanied by 2D verification investigations. The verification studies underline, that for multi-element computations the grid influence may easily exceed the turbulence model influence. The 3D benchmark computations yield a fair agreement of the numerical polar data to low Re-No. experiments up to maximum lift conditions. The block-structured codes show a moderate accuracy advantage if the point number is limited. The hybrid unstructured approaches have demonstrated the capability for a straight forward increase of complexity. High Re-No setting variations have manifested the need for further code improvements with respect to this sophisticated and important high lift simulation task.
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