MONKES

Code for calculating neoclassical transport in stellarators.

The MONoenergetic Kinetic Equation Solver (MONKES) is a freely available, open-source code that calculates neoclassical transport in stellarators by solving a radially local, monoenergetic drift-kinetic equation. MONKES main feature is its speed of calculation: The combination of spectral discretization in spatial and velocity coordinates with block sparsity allows MONKES to compute monoenergetic coefficients at low collisionality, in a single core, in approximately one minute. MONKES is sufficiently fast to be integrated into stellarator optimization codes for direct optimization of the bootstrap current (and/or neoclassical transport in general) and to be included in predictive transport suites.

Details about the drift-kinetic equation and the method used to solve it can be found at Escoto, Velasco, Calvo, Landreman and Parra, Nuclear Fusion (2024).

In order to receive an updated user manual and working examples, contact javier.escoto.lopez@gmail.com

License and usage of the code

Individuals, companies or institutions operating for profit must obtain prior permission to download and use this code, which is owned and registered by CIEMAT, by contacting joseluis.velasco@ciemat.es and javier.escoto.lopez@gmail.com