高速炉上部プレナム内温度成層化に関する解析手法の基本検証(高速炉,<特集>第13回動力・エネルギー技術シンポジウム)

概要

論文の詳細を見る
Three-dimensional thermal-hydraulic analyses of thermal stratification phenomena have been carried out in order to validate simulating ability of a single-phase thermal hydraulic code AQUA and commercial CFD codes STAR-CD and FLUENT. The analyses of thermal stratification water experiments demonstrated that the codes reproduced temperaure gradient and upward movement of the stratification interface in the case of utilizing appropriate discretization method and computational mesh arrangement for gravitational direction. No remarkable difference was observed between the calculated results with three codes. It was also shown that three turbulence models of the standard k-ε model, the RNG k-ε model and the RSM predicted fairly well the fundamental stratification behavior observed in the experiments.
社団法人日本機械学会の論文
2009-03-25