A data-driven actuator-line methodology for the simulation of high-lift aircraft wake systems

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Bennie, S. and Nagy, P. and Fossati, M. (2025) A data-driven actuator-line methodology for the simulation of high-lift aircraft wake systems. Computers and Fluids, 291. 106578. ISSN 0045-7930 (https://doi.org/10.1016/j.compfluid.2025.106578)

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Abstract

The actuator-line method is here integrated with a data-driven approach for the investigation of aircraft-induced trailing vortices as generated by landing and take-off configurations with varying levels of high-lift device deflections. It is shown that through coupling the Actuator-Line-Method to a suitable Reduced-Order-Model built upon spanwise aerodynamic force distributions obtained from high-fidelity CFD solution data. The resulting wake from the geometry can be reproduced in a manner that no longer requires an explicit representation of the aircraft geometry within the simulation environment. The result is a method that allows for increased fidelity in the vortex farfield when studying the relevant wake dynamics and evolution during take-off, climb, approach and landing. The accuracy of the proposed method is assessed via a direct comparison to traditional high-fidelity nearfield derived results where it was observed that the induced downstream velocity profile and resulting location of vortex structures displayed a satisfactory level of agreement. With the creation of such a method, the effects of variations in aircraft high-lift deployment can be included within the simulation of downstream vortex pairs in a manner that respects the computational limitations of current hardware.

ORCID iDs

Bennie, S., Nagy, P. and Fossati, M. ORCID logoORCID: https://orcid.org/0000-0002-1165-5825;
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