A comparison of spectral and vortex methods in three-dimensional incompressible flows

Authors:
Georges-Henri Cottet;Bertrand Michaux;Sepand Ossia;Geoffroy VanderLinden
Affiliations:
LMC-IMAG, Université Joseph Fourier, B.P. 53, 38041 Grenoble Cedex 09, France;LMC-IMAG, Université Joseph Fourier, B.P. 53, 38041 Grenoble Cedex 09, France;LEGI-IMG, Université Joseph Fourier, B.P. 53, 38041 Grenoble Cedex 09, France;Department of Mechanical Engineering, Université Catholique, 1348 Louvain la Neuve, Belgium
Venue:
Journal of Computational Physics
Year:
2002

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Abstract

We present a comparison of the performance of vortex and pseudospectral methods in two reference flows: a homogeneous turbulent flow at low Reynolds number and a vortex reconnection case at a moderate Reynolds number. The results should contribute to a better understanding of the accuracy of vortex methods in both resolved and underresolved simulations.