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Stabilization of the resistive wall mode by flowing metal walls

Authors :
J. P. Freidberg
M. V. Umansky
Riccardo Betti
Source :
Physics of Plasmas. 8:4427-4434
Publication Year :
2001
Publisher :
AIP Publishing, 2001.

Abstract

The effect of flowing metal walls on the resistive wall instabilities is analyzed for a general cylindrically symmetric diffusive pinch configuration. Two types of liquid metal flow are analyzed: a uniform flow which is poloidally symmetric, and a two-stream flow consisting of two opposite streams splitting at the top and merging at the bottom. It is found in both configurations that when the liquid wall flow velocity exceeds a critical value, the resistive wall mode is stabilized. However, for the two-stream flow the critical velocity is several times smaller than that for the uniform flow. Still in a realistic experiment one needs a flow velocity of a few tens m/s to stabilize the resistive wall mode.

Details

ISSN :
10897674 and 1070664X
Volume :
8
Database :
OpenAIRE
Journal :
Physics of Plasmas
Accession number :
edsair.doi...........9f9166bc04279810ff5be180a8cc3907
Full Text :
https://doi.org/10.1063/1.1399328