Direct evidence of eddy breaking and tilting by edge sheared flows observed in the TEXTOR tokamak

作者:Shesterikov I*; Xu Y; Hidalgo C; Berte M; Dumortier P; Van Schoor M; Vergote M; Van Oost G
来源:Nuclear Fusion, 2012, 52(4): 042004.
DOI:10.1088/0029-5515/52/4/042004

摘要

In this letter, we present direct evidence of eddy breaking and tilting events observed at the edge of the TEXTOR tokamak using a 2D gas puff imaging diagnostic. The occurrence of eddy breaking depends on the magnitude of the E-r x B flow shearing rate. The results confirm the theoretical predictions about the influence of E-r x B sheared flows in tilting and splitting turbulence eddies, and consequently, reducing the turbulent transport.

  • 出版日期2012-4