关键词: ITER, 屏蔽包层, 热工水力学, 计算流体力学, 有限元法

Abstract:

Hydraulic and thermal analyses of the shield block have been done to examine whether the current design meets the ITER requirements or not. Firstly, the loss coefficient in the flow driver was calculated from individual analysis with CFD code. Then, the pressure drop, velocity and heat transfer coefficient were obtained in the cooling system through a optimised model. Finally, the thermal analysis was carried out based on the hydraulic results with FEM code to examine the distribution of temperature and thermal stress. The analysis results show that the current design is more efficient to reduce the energy loss and improve the cooling efficiency, and satisfy the ITER requirements. Of course, further optimisation or improvement is still needed to ensure safety operation.

Key words: ITER, Shield blanket, Hydraulic and thermal, CFD, FEM