The preprint of the paper has been posted on arXiv, (joint work with Alberto Bressan). You can find the preprint at http://arxiv.org/abs/2002.01962.
The paper is accepted for publication in DCDS-A, 2020.
Here you can find the codes for numerical simulations. All the numerical simulations are carried out in Matlab. There are 3 files:
- InitVort.m : the function that computes the initial vorticity.
- PoissonA.m : compute the stiffness matrix using a finite difference method
to solve the Poisson equation in 2D, on a rectangle. - MainRun.m the main code, with the time-loop, plotting etc.
Here are some sample Figures:
The simulation result with one single spiral:
The simulation result that contains two spirals:
