Velocity-correction schemes for the incompressible Navier-Stokes equations in general coordinate systems
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Published version
Accepted version
OA Location
Author(s)
Serson, D
Meneghini, JR
Sherwin, SJ
Type
Journal Article
Abstract
This paper presents methods of including coordinate transformations into the solution of the incompressible Navier–Stokes equations using the velocity-correction scheme, which is commonly used in the numerical solution of unsteady incompressible flows. This is important when the transformation leads to symmetries that allow the use of more efficient numerical techniques, like employing a Fourier expansion to discretize a homogeneous direction. Two different approaches are presented: in the first approach all the influence of the mapping is treated explicitly, while in the second the mapping terms related to convection are treated explicitly, with the pressure and viscous terms treated implicitly. Through numerical results, we demonstrate how these methods maintain the accuracy of the underlying high-order method, and further apply the discretisation strategy to problems where mixed Fourier-spectral/hp element discretisations can be applied, thereby extending the usefulness of this discretisation technique.
Date Issued
2016-07-01
Date Acceptance
2016-04-11
Citation
Journal of Computational Physics, 2016, 316, pp.243-254
ISSN
1090-2716
Publisher
Elsevier
Start Page
243
End Page
254
Journal / Book Title
Journal of Computational Physics
Volume
316
Copyright Statement
© 2016 The Authors. Published by Elsevier Inc. This is an open access article under the CC
BY license (http://creativecommons.org/licenses/by/4.0/).
BY license (http://creativecommons.org/licenses/by/4.0/).
License URL
Sponsor
Engineering & Physical Science Research Council (E
Grant Number
EP/K037536/1
Subjects
Science & Technology
Technology
Physical Sciences
Computer Science, Interdisciplinary Applications
Physics, Mathematical
Computer Science
Physics
Incompressible flow
Velocity-correction methods
DIRECT NUMERICAL-SIMULATION
FLOW
Publication Status
Published