Abstract
In the edge transport barrier of H-mode plasmas, a large poloidal flow exists and the electrostatic potential and density can have steep gradients both in the radial and poloidal directions. The accessibility to a two-dimensionally steep structure is demonstrated by solving the model equation including the poloidal structure, combined with the equation giving the time evolution of the radial electric field. The analysis is carried out with the parameter set of the electrode biasing experiment and shows the existence of the convective particle flux arising from poloidal inhomogeneity. This study provides an essential explanation for improving the transport analyses in H-modes by taking account of the two-dimensional effect in toroidal plasmas.
| Original language | English |
|---|---|
| Pages (from-to) | A319-A326 |
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 48 |
| Issue number | 5 A |
| DOIs | |
| Publication status | Published - May 1 2006 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Nuclear Energy and Engineering
- Condensed Matter Physics
Cite this
Accessibility to a two-dimensionally steep structure of the electric field in tokamak H-mode. / Kasuya, N.; Itoh, K.
In: Plasma Physics and Controlled Fusion, Vol. 48, No. 5 A, 01.05.2006, p. A319-A326.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Accessibility to a two-dimensionally steep structure of the electric field in tokamak H-mode
AU - Kasuya, N.
AU - Itoh, K.
PY - 2006/5/1
Y1 - 2006/5/1
N2 - In the edge transport barrier of H-mode plasmas, a large poloidal flow exists and the electrostatic potential and density can have steep gradients both in the radial and poloidal directions. The accessibility to a two-dimensionally steep structure is demonstrated by solving the model equation including the poloidal structure, combined with the equation giving the time evolution of the radial electric field. The analysis is carried out with the parameter set of the electrode biasing experiment and shows the existence of the convective particle flux arising from poloidal inhomogeneity. This study provides an essential explanation for improving the transport analyses in H-modes by taking account of the two-dimensional effect in toroidal plasmas.
AB - In the edge transport barrier of H-mode plasmas, a large poloidal flow exists and the electrostatic potential and density can have steep gradients both in the radial and poloidal directions. The accessibility to a two-dimensionally steep structure is demonstrated by solving the model equation including the poloidal structure, combined with the equation giving the time evolution of the radial electric field. The analysis is carried out with the parameter set of the electrode biasing experiment and shows the existence of the convective particle flux arising from poloidal inhomogeneity. This study provides an essential explanation for improving the transport analyses in H-modes by taking account of the two-dimensional effect in toroidal plasmas.
UR - http://www.scopus.com/inward/record.url?scp=84884937988&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884937988&partnerID=8YFLogxK
U2 - 10.1088/0741-3335/48/5A/S31
DO - 10.1088/0741-3335/48/5A/S31
M3 - Article
AN - SCOPUS:84884937988
VL - 48
SP - A319-A326
JO - Plasma Physics and Controlled Fusion
JF - Plasma Physics and Controlled Fusion
SN - 0741-3335
IS - 5 A
ER -