Journal article
On geometrical alignment properties of two-dimensional forced turbulence
Abstract
In the present paper we study some geometrical properties of the small scales in 2D numerical turbulence. We analyze the alignment of the vorticity gradient with respect to the eigenvectors of the rate of strain tensor, a phenomenon related to the dynamics of the enstrophy cascade. Numerical simulations with different resolutions and dissipation models are used to show non-trivial dependence of the alignment on both the magnitude of the …
Authors
Protas B; Babiano A; Kevlahan NK-R
Journal
Physica D Nonlinear Phenomena, Vol. 128, No. 2-4, pp. 169–179
Publisher
Elsevier
Publication Date
April 1999
DOI
10.1016/s0167-2789(98)00301-7
ISSN
0167-2789