B202 改良二流体モデルによる原子炉熱設計手法の開発(2) : 中口径管に対する乱流拡散力モデルの適用性評価(OS8 熱流動),動力エネルギーシステム部門20周年,次の20年への新展開)

概要

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Advanced two-fluid model has been developed in Japan Atomic Energy Agency (JAEA). In the model, an interface tracking method is combined with the two-fluid model. Liquid clusters and bubbles larger than a computational cell are calculated using the interface tracking method, and those smaller than a cell are simulated by the two-fluid model. The turbulent dispersion force term is one of the most important constitutive equations for advanced two-fluid model. In the past, we have developed the new model for turbulent dispersion force and verified the developed model using the 3-dimentional two-fluid model code ACE-3D developing by JAEA, and the comparisons between the results of the analyses and air-water two-phase flow experiments in 200 mm diameter pipe. In this study, to verify applicability of middle diameter vertical pipe using the developed model, we compared between the analyses of results and air-water two-phase flow experiments in 38 mm diameter pipe.
一般社団法人日本機械学会の論文
2010-06-20