Abstract
Results of numerical simulations on a high-lift configuration with an Ultra High Bypass Ratio (UHBR) engine are shown. In the area of the integrated engine, a complex vortex-system develops. Different longitudinal vortices proceed downstream on the suction side influencing the local flowfield. Steady and unsteady numerical simulations are performed at different angles of attack. As flow solver the DLR TAU Code is used and the Menter-SST eddy viscosity turbulence model and the JHh-v2 Reynolds-Stress-Model are applied. The predicted vortex system is analyzed and the effect on the flow field and the local stall behavior is shown. In particular the effect of the turbulence models of different types on the prediction of the vortex system and the flowfield is pesented.
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Acknowledgements
The authors wish to acknowledge the German Federal Ministry for Economic Affairs and Energy (BMWi) for funding this research activity (grant number: 20A1301B). The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the BMWi or the German government. Furthermore, the authors would like to thank the North-German Supercomputing Alliance (HLRN) for providing computational resources within the project nii00091.
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Landa, T., Radespiel, R., Ritter, S. (2018). Simulations of Streamwise Vortices on a High-Lift Wing with UHBR-Engine. In: Dillmann, A., et al. New Results in Numerical and Experimental Fluid Mechanics XI. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 136. Springer, Cham. https://doi.org/10.1007/978-3-319-64519-3_4
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DOI: https://doi.org/10.1007/978-3-319-64519-3_4
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