Computational Modelling of Wing Downwash Profile with Reynolds-Averaged and Delayed Detached-Eddy Simulations

Tan, K. J. Benjamin; Wang, Peng Cheng; Srigrarom, Sutthiphong

doi:10.2514/6.2017-3960

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2023

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“…The primary CFD research instrument used in this paper is OpenFOAM (Open-source Field Operation and Manipulation) [34] -a free, open source and one of the leading software for CFD. It has been used to successfully capture the vortices, or the wakes behind the airfoils [35,36]. O'Regan et al [37] presented the CFD model with vorticity confinement model to capture the trailing vortices generated by a symmetrical airfoil profile of NACA0012.…”

Section: Iimethodologymentioning

confidence: 99%

Aerodynamic Interactions in Formation Flight for Wake Vortex Surfing

Chan

Wang

Hesse

2023

AIAA AVIATION 2023 Forum

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Formation flight typically observed in migratory birds allows the trailing aircraft to benefit from surfing the updraft of the wingtip vortices generated by a leading aircraft. This results in higher lift and reduced fuel consumption for the trailing aircraft. However, the formation spacing in longitudinal, lateral, and vertical direction directly impacts the aerodynamics performance of the trailing aircraft. This paper aims to utilize computational fluid dynamics (CFD) tool -OpenFOAM, to capture the wake vortex dynamics from the leading wing using URANS and LES turbulence models. The selected model is then utilized to explore the position of the trailing aircraft in formation and to determine the optimal spacing in terms of aerodynamic improvements in lift and drag.

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Section: Iimethodologymentioning

confidence: 99%