本文对以unit cell模型为基础建立起来的段塞流跟踪模型进行了改进.利用改进后的模型对水平管道中空气-水段塞流的压降、液塞平移速度、液塞长度等特征参数进行了模拟研究,并将模型预测结果与相应的试验结果进行了比较.结果表明,改进后的模型可以有效地预测以上各参数的演变规律.模拟和试验结果均表明,水平管道中段塞流的液塞平移速度符合正态分布,液塞长度符合对数正态分布.
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