Investigation of Stall Characteristics of an A3XX Relevant Airfoil up to High Reynolds Numbers in the Technology Program HAK 2

Hansen, H.; Szabó, I.A.

doi:10.1007/978-3-663-10901-3_29

Cited by 1 publication

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“…The 2D test cases are the same as those used in the assessment activity, one being the A310 threeelement landing configuration numerically and experimentally evaluated in GARTEUR. The second test case is the H8Y threeelement take-off configuration experimentally evaluated in the national German high lift programme (10) and related to the 3D KH3Y model, being the main EUROLIFT configuration.…”

Section: Test Casesmentioning

confidence: 99%

Evaluation of CFD methods for transport aircraft high lift systems

2005

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Major results and findings of the numerical work package of the European high lift programme EUROLIFT are 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 activities comprise the assessment of current CFD methods for 3D flows, evaluation of means for code improvement, and transition prediction. All aspects are especially devoted to high lift flow problems. A general capability to predict maximum lift on a simplified wing/fuselage high lift configuration is demonstrated by a variety of different numerical approaches. In general, major shortcomings are the reliability and the accurate simulation of large separation areas and the turn-around time to compute 3D lift polars. Advanced turbulence modelling and numerical solver features, such as the preconditioning technique, show a potential to overcome these deficiencies. Promising results with respect to transition prediction were obtained on a swept high lift wing using a database method. The results obtained in the numerical activities represent major ingredients on the way to a consistent numerical approach for the simulation of transport aircraft high lift configurations including all maximum lift determining effects.

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Section: Test Casesmentioning

confidence: 99%