BSTING: Recent progress in development of a fluid turbulence framework for stellarators

摘要

Introduction The high collisionality of tokamak and stellarator edge plasmas facilitates a fluid approach to turbulence simulations. While there are several fluid turbulence simulation codes for tokamak geometries [1, 2, 3], previous attempts to develop such a simulation framework for stellarators have been unsuccessful. Here we present various new features of the BOUT++ [4] framework as part of the BSTING project-which focuses on modifying BOUT++ to allow Simulation In Non-axisymmetric Geometries. The BOUT++ framework is a modular, object oriented and open source framework for fluid simulations with an international team of developers [4].