Mechanical analysis of FCI under high temperature and MHD flow impact

doi:10.7523/j.issn.2095-6134.2016.04.005

Abstract

Abstract:

In the ITER project, flow channel insert (FCI) serves as an indispensable electrical and thermal insulator.Mechanical behaviors of this component are affected by magneto-thermo-fluid-structure coupled fields.In this work, numerical investigations using finite volume method and finite element method were carried out to study flow pattern, heat transfer, and structural safety factors in the blanket module.Detailed stress analysis of FCI and influences caused by thermal conductivity were presented.Results show that FCI is basically safe considering through thickness stress and in-plane compressive stress.However, the in-plane tensile stress and shear stress at edges are close to the material limit.Besides, FCI with good thermal insulating ability will lead to high outlet temperature of the flow and can well protect the first wall from bulk flow heat leakage.However, the temperature gradient and thermal stress in FCI will increase in this case.

Key words: multi-physics fields, blanket module, FCI, thermal stress, FSI

CLC Number:

O343.6

LIU Jianjian, LI Mingjian, CHEN Long, NI Mingjiu, ZHANG Nianmei. Mechanical analysis of FCI under high temperature and MHD flow impact[J]. , 2016, 33(4): 462-467.

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