L.B. Streher, R. Heinrich

The design and optimization of aircraft entail the assessment of multidisciplinary phenomena through highfidelity multidisciplinary simulations. The realization of such simulations requires the modeling of movable control surfaces for realistic configurations based on two approaches: combining mesh deformation with either overset (Chimera) meshes or sliding interfaces. The generation of Chimera meshes, however, is particularly cumbersome for realistic aircraft configurations, while the formulation of a sliding interface method for cellvertex finite volume codes is nontrivial. Here we further develop the methodology to automatically generate the overlapping regions required by the overset meshes technique to address aircraft configurations with adjacent control surfaces. Moreover, we develop a sliding interface method inherent to CFD codes with a cell-vertex metric. Both the improved methodology for generating overlapping regions and the sliding interface method are tested for steady and unsteady computations with and without mesh deformation. As good results are obtained for all test cases, important progress is achieved in modeling dynamically moving control surfaces for realistic aircraft configurations.

Deutscher Luft- und Raumfahrtkongress 2021

Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2022

Conference Paper

englisch

21,0 x 29,7 cm, 10 Seiten

urn:nbn:de:101:1-2022011212495903641639

10.25967/550049

Computational fluid dynamics, Control surface modeling, Chimera technique, Sliding interfaces

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Streher, L.B.; Heinrich, R. (2022): Modeling of Dynamically Moving Control Surfaces for Realistic Aircraft Configurations. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/550049. urn:nbn:de:101:1-2022011212495903641639.

07.01.2022