4-6 February 2019
Centara Grand at Central Ladprao
Asia/Bangkok timezone
Deadline for full paper revision: 21 May 2019.

Simulation Study of Plasma Boundary in Thailand Future Tokamak using Two-Points Model

4 Feb 2019, 14:50
1h
Centara Grand at Central Ladprao

Centara Grand at Central Ladprao

Chatuchak, Bangkok 10900, Thailand
Poster Physics Poster 1

Speaker

Rungsin Kongkerd (Department of Physics ,King Monkut's University of Technology Thonburi)

Description

As Thailand has been preparing to operate a small tokamak in which the device will be upgraded from HT-6M tokamak, the quantitative information about the plasma in the edge and at the material surface would be insightful for future experimental operations. In this work, we use a simple two-point model to investigate the particle and heat exhausted from the core to the limiter for the tokamak with nominal parameters of HT-6M. The model assumes that the transports of heat and particle from the core enter the scrape-off layer at the outer midplane. They then travel to the limiter along the magnetic field line. In this scrape-off layer region, the parallel transport dominates the cross-field transport. Thus the transport equations can be reduced to a set of nonlinear equations that relates the density and temperature at the upstream to those at the limiter. It is found that the electron temperature at the limiter surface is in the range of 1-100 eV depending on the particle and heat fluxes from the core. Furthermore the conditions for the plasma detachment are also explored.

Primary author

Rungsin Kongkerd (Department of Physics ,King Monkut's University of Technology Thonburi)

Co-author

Dr. Apiwat Wisitsorasak (King Mongkut's University of Technology Thonburi)

Presentation Materials

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Paper

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