Numerical Investigation of Transients in the SSPX Spheromak | Zendy

C. R. Sovinec | Zendy; B. I. Cohen | Zendy; G. A. Cone | Zendy; E. B. Hooper | Zendy; H. S. McLean | Zendy

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Numerical Investigation of Transients in the SSPX Spheromak

Author(s) -

C. R. Sovinec,

B. I. Cohen,

G. A. Cone,

E. B. Hooper,

H. S. McLean

Publication year - 2005

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.94.035003

Subject(s) - spheromak , toroid , physics , magnetohydrodynamics , plasma , transient (computer programming) , nonlinear system , mechanics , pulse (music) , current (fluid) , energy transport , magnetic field , computational physics , atomic physics , nuclear physics , thermodynamics , voltage , quantum mechanics , computer science , operating system , engineering physics

Nonlinear plasma simulations of the Sustained Spheromak Physics Experiment demonstrate the role of transient effects in establishing a toroidal magnetic structure that confines internal energy. Magnetohydrodynamics modeling with temperature-dependent transport coefficients compares well with experimental measurements and shows that the second current pulse improves confinement by keeping the q profile from falling below the value of 1/2, suppressing resonant m = 1, n = 2 fluctuations.

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