Direct simulation of three-dimensional turbulence in the Taylor–Green vortex
Open Access
- 1 October 1991
- journal article
- Published by IOP Publishing in Fluid Dynamics Research
- Vol. 8 (1-4) , 1-8
- https://doi.org/10.1016/0169-5983(91)90026-f
Abstract
The incompressible Navier-Stokes equations are numerically integrated on a Cray-2 machine with the periodic Taylor–Green initial data. Using a spectral method taking advantage of the symmetries of the flow, a resolution of 8643 and corresponding high Reynolds numbers (Rλ = 140) are obtained Visualisations of the resulting turbulent flow show that the turbulent activity is strongly correlated with low-pressure zones. We demonstrate that this behavior of the pressure field is linked to the fact that the square vorticity is spatially more concentrated than the energy dissipation.Keywords
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