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[ascl:2203.030] Wigglewave: Linearized governing equations solver

Wigglewave uses a finite difference method to solve the linearized governing equations for a torsion Alfvèn wave propagating in a plasma with negligible plasma beta and in a force-free axisymmetric magnetic field with no azimuthal component embedded in a high density divergent tube structure. Wigglewave is fourth order in time and space using a fourth-order central difference scheme for calculating spatial derivatives and a fourth-order Runge-Kutta (RK4) scheme for updating at each timestep. The solutions calculated are the perturbations to the velocity, v and to the magnetic field, b. All variables are calculated over a uniform grid in radius r and height z.

Code site:
https://github.com/calboo/wigglewave
Described in:
https://ui.adsabs.harvard.edu/abs/2022MNRAS.510.1910B
Bibcode:
2022ascl.soft03030B

Views: 2044

ascl:2203.030
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