Reconstruction of heat flux profile on the HL-2A divertor plate with a three-dimensional analysis model

doi:10.1088/1674-1056/22/1/015202

Abstract A three-dimensional analysis model based on finite element method (FEM) is developed, which can derive the evolution and distribution characteristics of heat flux deposited on the divertor plate from the surface temperature measured by infrared thermography diagnostics. The numerical simulations of surface heating due to localized power bursts and the power deposition calculations demonstrate that this analysis can provide accurate results and useful information about localized hot spots compared with the normal one- and two-dimensional calculations. In this paper, the details of this three-dimensional analysis are presented, and some results in ohmic heating and electron cyclotron resonant heating (ECRH) discharge on HL-2A are given.

Keywords: three-dimensional analysis heat flux divertor plate

Received: 23 April 2012
Revised: 19 June 2012
Accepted manuscript online:

PACS:	52.55.Fa	(Tokamaks, spherical tokamaks)
	52.55.Rk	(Power exhaust; divertors)
	52.40.Hf	(Plasma-material interactions; boundary layer effects)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10805016) and the National Magnetic Confinement Fusion Science Program, China (Grant No. 2009GB104008).

Corresponding Authors: Gao Jin-Ming
E-mail: gaojm@swip.ac.cn

Cite this article:

Gao Jin-Ming (高金明), Li Wei (李伟), Xia Zhi-Wei (夏志伟), Pan Yu-Dong (潘宇东), Lu Jie (卢杰), Yi Ping (易萍), Liu Yi (刘仪) Reconstruction of heat flux profile on the HL-2A divertor plate with a three-dimensional analysis model 2013 Chin. Phys. B 22 015202

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Reconstruction of heat flux profile on the HL-2A divertor plate with a three-dimensional analysis model

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