This title appears in the Scientific Report :
2001
Please use the identifier:
http://dx.doi.org/10.1016/S0022-3115(00)00602-4 in citations.
Calculation of 2D profiles for the plasma and electric field in the boundary layer of the TEXTOR-94 Tokamak
Calculation of 2D profiles for the plasma and electric field in the boundary layer of the TEXTOR-94 Tokamak
An improved version of the 2D multifluid code TECXY is used to study the plasma parameters and the electric field in the boundary layer of the TEXTOR-94 tokamak. An anomalous perpendicular sheer viscosity eta (perpendicular to) is incorporated into the ion momentum balance which allows to fulfil the...
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Personal Name(s): | Gerhauser, H. |
---|---|
Zgorski, R. / Claaßen, H. A. / Lehnen, M. | |
Contributing Institute: |
Institutsbereich I; IPP-1 Institutsbereich II; IPP-2 |
Published in: | Journal of nuclear materials, 290-293 (2001) S. 609 - 614 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2001
|
Physical Description: |
609 - 614 |
DOI: |
10.1016/S0022-3115(00)00602-4 |
Document Type: |
Journal Article |
Research Program: |
Teilchen- und Energietransport in der Plasmarandschicht |
Series Title: |
Journal of Nuclear Materials
290/293 |
Subject (ZB): | |
Publikationsportal JuSER |
An improved version of the 2D multifluid code TECXY is used to study the plasma parameters and the electric field in the boundary layer of the TEXTOR-94 tokamak. An anomalous perpendicular sheer viscosity eta (perpendicular to) is incorporated into the ion momentum balance which allows to fulfil the global (magnetic surface averaged) ambipolarity constraint for the radial electric current, and to determine the electric field in the transition layer by a second-order ordinary differential equation for E-r(r). The code modelling results suggest the existence of a narrow global circulation layer for the poloidal plasma velocity just inside the separatrix which is connected with a negative electric field spike. PI proper choice of eta (perpendicular to) gives better agreement with experimental velocity profiles. (C) 2001 Elsevier Science B.V. All rights reserved. |