Laboratoire de Mécanique des Fluides et d'Acoustique - UMR 5509

LMFA - UMR 5509
Laboratoire de Mécanique des Fluides et d’Acoustique
Lyon
France


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Accueil > Activités de Recherche > Turbulence et Instabilités > MHD and Plasma Physics

Numerical investigation of velocity fields in fusion plasmas

Numerical investigation of velocity fields in fusion plasmas

Most of the existing magnetically confined fusion plasmas move and are turbulent, which is sometimes quite a problem. Indeed, in order to get a nuclear fusion reaction started, and to keep it going, one needs to obtain high temperatures (and densities) and the hot plasma is supposed to be kept in place by a magnetic field.

In our team we study the velocity fields in fusion plasmas of the tokamak and reversed-field-pinch type using fluid models. We have developed an efficient and flexible numerical method to study arbitrarily shaped plasmas confined by solid walls. The method is based on pseudo-spectral techniques combined with an immersed boundary method (PhD Jorge Morales) .

Staff involved : W. Bos, Robert Chahine. Collaboration : Kai Schneider.

References

2015

Futatani S, Morales J, Bos WJT. Dynamic equilibria and MHD instabilities in toroidal plasmas with non-uniform transport coefficients. Phys. Plasmas. 2015;22:052503.
Morales J, Bos WJT, Schneider K, Montgomery D. Magnetohydrodynamically generated velocities in confined plasma. Phys. Plasmas. 2015;22:042515.
Plihon N, Bousselin G, Palermo F, et al. Flow dynamics and magnetic induction in the von-Karman plasma experiment. J. Plasma Phys.. 2015;81:345810102.

2014

Morales J, Bos WJT, Schneider K, Montgomery D. The effect of Toroidicity on Reversed Field Pinch Dynamics. Plasma Phys. Control. Fusion. 2014;56:095024.
Morales J, Leroy M, Bos WJT, Schneider K. Simulation of confined magnetohydrodynamic flows with Dirichlet boundary conditions using a pseudo-spectral method with volume penalization. J. Comput. Phys.. 2014;274:64–94.
Roberts M, Leroy M, Morales J, Bos WJT, Schneider K. Helically forced MHD flows in confined cylindrical geometries. Fluid Dyn. Res.. 2014;46:061422.

2012

Morales J, Bos WJT, Schneider K, Montgomery D. Intrinsic rotation of toroidally confined magnetohydrodynamics. Phys. Rev. Lett.. 2012;109:175002.