[Table of Contents]

Plasma and Fusion Research

Volume 9, 1403095 (2014)

Regular Articles

Test Simulations of Temperature Screening Effect by using Kinetic Monte Carlo Model
Yuki HOMMA1,2), Akiyoshi HATAYAMA1), Yu SAWADA1) and Shohei YAMOTO1)
1)
Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
2)
Research Fellow of Japan Society for the Promotion of Science
(Received 25 January 2014 / Accepted 11 May 2014 / Published 4 July 2014)

Abstract

Temperature Screening Effect (TSE) on the impurity transport in fusion plasmas has been studied by a kinetic Monte Carlo simulation model [Y. Homma and A. Hatayama, J. Comput. Phys. 250, 206 (2013)]. The TSE drift is induced by the background-plasma tempetature gradient across the magnetic field, and is dependent on various parameters of the impurity species as well as on the background-plasma condition. A series of test simulations has been performed in wide range of parameter space. It has been confirmed that the parametric dependences of the TSE drift are correctly reproduced by our kinetic model.

Keywords

temperature screening effect, thermal force, perpendicular temperature gradient, numerical model, parametric dependences

DOI: 10.1585/pfr.9.1403095

Full Text

PDF format (536Kbytes) PDF Download

References

  • [1] P.C. Stangeby, C. Farrell, S. Hoskins et al., Nucl. Fusion 28, 1945 (1988).
  • [2] D. Reiser, D. Reiter and M.Z. Tokar', Nucl. Fusion 38, 165 (1998).
  • [3] K. Shimizu, H. Kubo, T. Takizuka et al., J. Nucl. Mater. 220-222, 410 (1995).
  • [4] J. Miettunen, T. Kurki-Suonio, T. Makkonen et al., Nucl. Fusion 52, 032001 (2012).
  • [5] A. Fukano, M. Noritake, K. Hoshino et al., J. Nucl. Mater. 363-365, 211 (2007).
  • [6] Y. Homma and A. Hatayama, J. Comput. Phys. 231, 3211 (2012).
  • [7] Y. Homma and A. Hatayama, Contrib. Plasma Phys. 52, No. 5-6, 505 (2012).
  • [8] Y. Homma and A. Hatayama, J. Comput. Phys. 250, 206 (2013).
  • [9] S.I. Braginskii, Transport Processes in a Plasma, in Reviews of Plasma Physics, Vol.1 (M.A. Leontovich Ed.), (Consultants Bureau, New York, 1965).
  • [10] P. Helander and D.J. Sigmar, Collisional Transport in Magnetized Plasmas (Cambridge University Press, New York, 2002).
  • [11] T. Takizuka and H. Abe, J. Comput. Phys. 25, 205 (1977).
  • [12] B.A. Trubnikov, Particle Interactions in a Fully Ionized Plasma, in Reviews of Plasma Physics, Vol.1 (M.A. Leontovich Ed.) (Consultants Bureau, New York, 1965).

This paper may be cited as follows:

Yuki HOMMA, Akiyoshi HATAYAMA, Yu SAWADA and Shohei YAMOTO, Plasma Fusion Res. 9, 1403095 (2014).