The Pest1 code determines the stability of a given equilibrium using the delta-W method. It uses the correct kinetic energy and can determine the complete spectrum. In practice we seek the unstable eigenvalues only. The procedure requires a mapping to the PEST co-ordinates and then computation of delta-W in the plasma region, and in the external vacuum-region to set up the potential and kinetic energy matrices. This is followed by an eigenvalue determination using an inverse vector iteration techinque.
Keywords for this software
References in zbMATH (referenced in 1 article )
Showing result 1 of 1.
- Blokland, J.W.S.; van der Holst, B.; Keppens, R.; Goedbloed, J.P.: PHOENIX: MHD spectral code for rotating laboratory and gravitating astrophysical plasmas (2007)