Nonlinearly driven harmonics of Alfvén modes
- Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (United States)
In order to study the leading order nonlinear magneto-hydrodynamic (MHD) harmonic response of a plasma in realistic geometry, the AEGIS code has been generalized to account for inhomogeneous source terms. These source terms are expressed in terms of the quadratic corrections that depend on the functional form of a linear MHD eigenmode, such as the Toroidal Alfvén Eigenmode. The solution of the resultant equation gives the second order harmonic response. Preliminary results are presented here.
- OSTI ID:
- 22252115
- Journal Information:
- Physics of Plasmas, Vol. 21, Issue 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Modelling of beam-driven Alfvén modes in TJ-II plasmas
Axisymmetric global Alfvén eigenmodes within the ellipticity-induced frequency gap in the Joint European Torus
Nonlinearly driven second harmonics of Alfven cascades
Journal Article
·
Thu Mar 14 00:00:00 EDT 2019
· Nuclear Fusion
·
OSTI ID:22252115
+7 more
Axisymmetric global Alfvén eigenmodes within the ellipticity-induced frequency gap in the Joint European Torus
Journal Article
·
Mon Dec 11 00:00:00 EST 2017
· Physics of Plasmas
·
OSTI ID:22252115
+1 more
Nonlinearly driven second harmonics of Alfven cascades
Journal Article
·
Sat Apr 15 00:00:00 EDT 2006
· Physics of Plasmas
·
OSTI ID:22252115
+1 more