Parallel Flow in the JET Scrape-Off Layer
Parallel plasma flows with Mach number M=0.5 have been measured in the JET SOL. These flows show a maximum some 10-20 mid-plane mm outside the separatrix, and decrease towards the separatrix. The flow reverses when the Bt and Ip are reversed, but is asymmetric about zero. Modelling suggests that a contributor to the observed flow is the co-current toroidal momentum generated in the SOL by ion vB an classical drifts, together with ion Pfirsh-Schluter flow.
Bibliographic Reference: Report: JET-P(99)62, 9pp.
Availability: Available from the Librarian, JET Joint Undertaking, Abingdon (GB)
Record Number: 200011868 / Last updated on: 2000-03-21
Original language: en
Available languages: en