三次元One-Way気泡追跡法に基づく未発達気泡・スラグ流の予測 : 第2報,実験結果と計算結果の比較(流体工学,流体機械)

概要

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The verification of the three-dimensional one-way bubble tracking method (BTM) proposed in our previous report is carried out through the comparisons between measured and predicted developing bubble-slug flows in a vertical pipe. The approaching process of two large bubbles in various liquid flow conditions is well predicted by a wake field model implemented in BTM. Good predictions are also obtained for the spatial evolutions of flow patterns, mean void fractions, void fluctuations, radial void profiles, mean pressure drops and pressure drop fluctuations under stagnant, laminar and turbulent flow conditions, provided that the bubble coalescence probalility between two small bubbles and the inlet distributions of bubble size and bubble position are appropriately given.
社団法人日本機械学会の論文
2004-04-25