Core transport studies in fusion devices
Book chapter, 2010

Comprehensive first principles modelling of fusion plasmas is a numerically challenging: the complicated magnetic geometry and long range electromagnetic interactions between multiple species introduce complex collective behaviour in the plasma. In addition, steep density and temperature gradients combined with an inhomogeneous magnetic field drives instabilities, resulting in non-linear dynamics and turbulence. The turbulence in magnetically confined fusion plasmas has important and non-trivial effects on the quality of the energy confinement. These effects are hard to make a quantitative assessment of analytically. The problem investigated in this article is the transport of energy and particles, in particular impurities, in a Tokamak plasma. Impurities from the walls of the plasma vessel cause energy losses if they reach the plasma core. It is therefore important to understand the transport mechanisms to prevent impurity accumulation and minimize losses. This is an area of research where turbulence plays a major role and is intimately associated with the performance of future fusion reactors, such as ITER.

plasma physics

fusion

transport

Author

Pär Strand

Chalmers, Department of Radio and Space Science, Transport Theory

Andreas Skyman

Chalmers, Department of Radio and Space Science, Transport Theory

Hans Nordman

Chalmers, Department of Radio and Space Science, Transport Theory

Driving Forces

Sustainable development

Areas of Advance

Energy

Roots

Basic sciences

Subject Categories

Other Physics Topics

Fusion, Plasma and Space Physics

More information

Created

10/6/2017