TY  - JOUR
AU  - Gerhauser, H.
AU  - Zgorski, R.
AU  - Claaßen, H. A.
AU  - Lehnen, M.
TI  - Calculation of 2D profiles for the plasma and electric field in the boundary layer of the TEXTOR-94 Tokamak
JO  - Journal of nuclear materials
VL  - 290-293
SN  - 0022-3115
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PreJuSER-42806
SP  - 609 - 614
PY  - 2001
N1  - Record converted from VDB: 12.11.2012
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000167676700122
DO  - DOI:10.1016/S0022-3115(00)00602-4
UR  - https://juser.fz-juelich.de/record/42806
ER  -