Numerical simulation of heat transfer and fluid flow of a non-equilibrium argon plasma jet with confined wall
- Japan Atomic Energy Research Inst., Ibaraki (Japan)
- Kyushu Univ., Kasuga-shi Fukuoka (Japan); and others
Among plasma-facing components (PFC), a divertor plate especially suffers from the localized high heat flux over 10 MW/m{sup 2}. Therefore, it is important to develop a high performance heat removal system against the high heat flux. In the conceptual design of SSTR (Steady State Tokamak Reactor), a gas-solid suspension flow consisted of the helium gas and the fine SiC particles is proposed as a coolant. Helium gas particulate flow has a large heat capacity and an inherent safety feature and ignores the MHD (magnetohydrodynamics) effects. The final goal of this study is to establish the high heat flux removal method from divertors. The authors investigate the thermofluid characteristics of gas-solid suspension flow. At present stage, they make a plan of heat removal experiment using the argon plasma jet as high heat flux source at the atmospheric pressure. However, there are some uncertainty about heat transfer from plasma to the solid wall because of its phenomenological complexities such as ionizations, recombinations, energy-exchange collisions between electrons and heavy particle consisted of neutral particles and ions. The authors have performed a numerical analysis of two-dimensional argon plasma laminar jet with the confined wall to predict its heat transfer and flow behaviors.
- OSTI ID:
- 196974
- Report Number(s):
- CONF-940664-; TRN: 95:005767-0143
- Resource Relation:
- Conference: ISFNT-3: international symposium on fusion nuclear technology, Los Angeles, CA (United States), 27 Jun - 1 Jul 1994; Other Information: PBD: 1994; Related Information: Is Part Of Third international symposium on fusion nuclear technology; PB: 362 p.
- Country of Publication:
- United States
- Language:
- English
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