We report the first nonlinear three-dimensional magnetohydrodynamic (MHD) numerical simulations of the reversed-field pinch (RFP) that exhibit a systematic repetition of quasisingle helicity states with the same dominant mode in between reconnection events. This distinctive feature of experimental self-organized helical RFP plasmas is reproduced in MHD simulations at low dissipation by allowing a helical modulation of the plasma magnetic boundary similar to the experimental one. Realistic mode amplitudes and magnetic topology are also found. © 2013 American Physical Society.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Bonfiglio, D., Veranda, M., Cappello, S., Escande, D. F., & Chacón, L. (2013). Experimental-like helical self-organization in reversed-field pinch modeling. Physical Review Letters, 111(8), -. . https://doi.org/10.1103/PhysRevLett.111.085002