Implicit large-eddy simulation of a wingtip vortex
Author(s)
Type
Journal Article
Abstract
In this article, recent developments in numerical methods for performing a large-eddy simulation of the formation and evolution of a wingtip vortex are presented. The development of these vortices in the near wake, in combination with the large Reynolds numbers present in these cases, makes these types of test cases particularly challenging to investigate numerically. First, an overview is given of the spectral vanishing viscosity/implicit large-eddy simulation solver that is used to perform the simulations, and techniques are highlighted that have been adopted to solve various numerical issues that arise when studying such cases. To demonstrate the method’s viability, results are presented from numerical simulations of flow over a NACA 0012 profile wingtip at Rec=1.2×106Rec=1.2×106 and they are compared against experimental data, which is to date the highest Reynolds number achieved for a large-eddy simulation that has been correlated with experiments for this test case. The model in this paper correlates favorably with experiment, both for the characteristic jetting in the primary vortex and pressure distribution on the wing surface. The proposed method is of general interest for the modeling of transitioning vortex-dominated flows over complex geometries.
Date Issued
2016-02-01
Date Acceptance
2015-09-11
Citation
AIAA Journal: devoted to aerospace research and development, 2016, 54 (2), pp.506-518
ISSN
0001-1452
Publisher
American Institute of Aeronautics and Astronautics
Start Page
506
End Page
518
Journal / Book Title
AIAA Journal: devoted to aerospace research and development
Volume
54
Issue
2
Copyright Statement
© 2015 American Institute of Aeronautics and Astronautics, Inc.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
McLaren Racing Limited
Royal Academy Of Engineering
Grant Number
EP/H000208/1
AEDZ_P42726
AEDZ_P40009
Subjects
Science & Technology
Technology
Engineering, Aerospace
Engineering
SPECTRAL VANISHING VISCOSITY
4-VORTEX AIRCRAFT WAKE
NEAR-FIELD
TIP VORTEX
TURBULENCE SIMULATIONS
TRAILING VORTICES
ELEMENT METHODS
UNSTEADY-FLOW
SVV-LES
STABILIZATION
Aerospace & Aeronautics
0901 Aerospace Engineering
0913 Mechanical Engineering
Publication Status
Published
Date Publish Online
2015-11-26