K-2202 サブチャンネル間に圧力差のある非平衡流れの実験とモデル化 : 第1報,単相流の流量配分過程について(J14-1 気液二相流動)(J14 & J11 & J12 原子力利用技術と熱問題)

概要

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Subchannel analysis, a practical method to predict thermal-hydraulic behavior of coolant in a BWR fuel assembly, needs to estimate fluid transfer between subchannels, i.e. Cross-flow. The purpose of this study is to predict single-phase flow redistribution and pressure difference between subchannels under hydrodynamic non-equilibrium flow condition with the pressure difference. In such a non-equilibrium flow, a diversion cross-flow, which is one mechanism of the above fluid transfer, plays a very important role. In the prediction, therefore, the diversion cross-flow has been accurately evaluated by a correlation of cross-flow resistance coefficient reported in our previous report.
一般社団法人日本機械学会の論文
2001-08-22