The analysis of thermal-hydraulics and thermal structural responses of a shield plug through FLUSH

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The FLUSH, which has been developed for the purpose of calculating the interaction between thermal-hydraulics and thermal structural responses, was validated through the calculation of SPINTA and the comparizon of its experimental results. The results obtained are as follows; (1)The temperature distributions of the shield plug were able to simulate within 17% error of the experimental results, (2)The thermal stress distributions were normally calculated, (3)The iteration was converged in 0.27% of the norm of temperature. and it took about 122 minutes as the total CPU time of the calculation. These results show that even the large components of FBR can be analysed sufficiently and accurately in reasonable CPU time through the FLUSH.