A new approach discretising the 2D poloidal plane of fusion devices

An important challenge in plasma codes is handling the geometry. In this work, our aim is to test different solutions in a general curvilinear case, so that any geometry, however complex, can be simulated by mapping one or multiple patches to the final wished geometry. We decided to study two different approaches to solve this problem: the first one using an IgA (Isogeometric Analysis) based on Non-Uniform Rational B-Splines (NURBS); the second using a Finite Element Method on a regular equilateral triangle mesh of hexagonal form, based on Box-Splines.