Confinement scaling in the advanced reversed-field pinch
2006 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 48, no 11, L97-L104 p.Article in journal (Refereed) Published
A numerical study of confinement scaling in the advanced reversed-field pinch ( RFP) is presented. In the advanced RFP, the tearing mode activity that dominates conventional RFP plasma fluctuations is reduced by current profile control ( CPC). In this work, theoretical limits for confinement in the advanced RFP are explored, modelling a CPC with internally applied electric fields. The obtained scalings of ion temperature, poloidal beta value, energy confinement time and magnetic field fluctuations indicate strongly improved confinement as compared with the conventional RFP. Reactor relevant on-axis temperatures are obtained using ohmic heating alone. Pressure driven modes persist within the present 3D nonlinear, resistive, single-fluid MHD model, but may be reduced by non-ideal effects.
Place, publisher, year, edition, pages
2006. Vol. 48, no 11, L97-L104 p.
Electric current control, Electric field effects, Fluid dynamics, Magnetic field effects, Mathematical models, Numerical analysis, Three dimensional computer graphics
IdentifiersURN: urn:nbn:se:kth:diva-6333DOI: 10.1088/0741-3335/48/11/L01ISI: 000242550000001ScopusID: 2-s2.0-33846094480OAI: oai:DiVA.org:kth-6333DiVA: diva2:11018
QC 201009062006-11-132006-11-132010-09-06Bibliographically approved