S054096 Evaluation for Flow-Induced Vibration of a Primary Circuit Hot-Leg Piping in a Sodium-Cooled Fast Reactor (6) : Prediction of Unsteady Flow Field in JSFR Hot-Leg Piping

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  • S054096 ナトリウム冷却高速炉1次系ホットレグ配管の流力振動評価(6) : JSFRホットレグ配管における非定常流動場の予測([S05409]噴流,後流,およびはく離流れの基礎と応用:最前線(9))

Abstract

In Japan Atomic Energy Agency (JAEA), a study on flow induced vibration in the primary cooling system of Japan Sodium cooled Fast Reactor (JSFR) consisting of large diameter pipe and pipe elbow with short curvature radius ("short-elbow") has been conducted. Flow-induced vibration in the short-elbow is an important issue in design study of JSFR, because it may affect to structural integrity of the pipe. In this paper, unsteady flow characteristics in the JSFR short-elbow pipe related to the large-scale eddy motion were estimated based on knowledge from existing studies for curved pipes and scaled water experiments and numerical simulations for the JSFR hot-leg piping.

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