Structure of parallel-velocity-shear driven mode in toroidal plasmas | Zendy

J.Q. Dong | Zendy; Wenbin Xu | Zendy; Y.Z. Zhang | Zendy; W. Horton | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Structure of parallel-velocity-shear driven mode in toroidal plasmas

Author(s) -

J.Q. Dong,

Wenbin Xu,

Y.Z. Zhang,

W. Horton

Publication year - 1998

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/674809

Subject(s) - toroid , turbulence , physics , plasma , mechanics , reynolds number , reynolds stress , torus , perturbation (astronomy) , shear stress , shear (geology) , tokamak , wake , classical mechanics , computational physics , materials science , geometry , mathematics , quantum mechanics , composite material

It is shown that the Fourier-ballooning representation is appropriate for the study of short wavelength drift-like perturbation in toroidal plasmas with a parallel velocity shear (PVS). The radial structure of the mode driven by a PVS is investigated in a torus. The Reynolds stress created by PVS turbulence and proposed as one of the sources for a sheared poloidal plasma rotation is analyzed. It is demonstrated that a finite ion temperature may strongly enhance the Reynolds stress creation ability from PVS driven turbulence. The correlation of this observation with the requirement that ion heating power be higher than a threshold value for the formation of an internal transport barrier is discussed

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research