Insights from a pseudospectral study of a potentially singular solution of the three-dimensional axisymmetric incompressible Euler equation
Fluid Dynamics
2022-07-06 v2 Statistical Mechanics
Abstract
We develop a Fourier-Chebyshev pseudospectral direct numerical simulation (DNS) to examine a potentially singular solution of the radially bounded, three-dimensional (3D), axisymmetric Euler equations [G. Luo and T.Y. Hou, Proc. Natl. Acad. Sci. USA, 111.36 (2014)]. We demonstrate that: (a) the time of singularity is preceded, in any spectrally truncated DNS, by the formation of oscillatory structures called tygers, first investigated in the one-dimensional (1D) Burgers and two-dimensional (2D) Euler equations; (b) the analyticity-strip method can be generalized to obtain an estimate for the (potential) singularity time.
Keywords
Cite
@article{arxiv.2012.14182,
title = {Insights from a pseudospectral study of a potentially singular solution of the three-dimensional axisymmetric incompressible Euler equation},
author = {Sai Swetha Venkata Kolluru and Puneet Sharma and Rahul Pandit},
journal= {arXiv preprint arXiv:2012.14182},
year = {2022}
}
Comments
17 pages. 13 figures