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
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
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基于三维单向气泡跟踪法的未发育气泡及渣流预测
DOI：
10.1299/kikaib.70.888
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
明男 冨山
中科院分区：
文献类型：
--
作者：
秀定 玉井;明男 冨山
通过对垂直管道中气泡段塞流的测量和预测结果的比较，验证了我们在以前的报告中提出的三维单向气泡跟踪方法（BTM）。在BTM中实现的尾流场模型很好地预测了不同液体流动条件下两个大气泡的接近过程。在适当给定两个小气泡的合并概率以及气泡尺寸和位置的入口分布的条件下，还可以很好地预测停滞、层流和湍流条件下流型、平均含气率、含气波动、径向含气分布、平均压降和压降波动的空间演化。
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 probability between two small bubbles and the inlet distributions of bubble size and bubble position are appropriately given.