Controlling shear flow generation in a transport model

N. Daniels, A. S. Ware, B. Fetscher, D. E. Newman, C. Hidalgo, M. A. Pedrosa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A one-dimensional transport model is used to study edge poloidal shear flow generation during gas puffing experiments and hysteresis effects in the generation of this flow. Above a critical threshold the shear flow improves confinement by reducing turbulent transport. For subcritical flows (i.e., flows that do not trigger transition to a higher confinement regime), there is no true hysteresisin theflow. An apparent lag may be observed if the rateof ramping the particle source is rapid relative to transport time scales. Initial work on critical flows is also presented.

Original languageEnglish
Title of host publication34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Pages1342-1345
Number of pages4
Edition2
StatePublished - 2007
Event34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - Warsaw, Poland
Duration: Jul 2 2007Jul 6 2007

Publication series

Name34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Number2
Volume31

Conference

Conference34th European Physical Society Conference on Plasma Physics 2007, EPS 2007
Country/TerritoryPoland
CityWarsaw
Period07/2/0707/6/07

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