在本实验参数范围内可将孔隙流道内空气/水两相流动划分为泡状流、泡状一弹状混合流、弹状流、弹状一环状混合流和环状流五种流型.本文修正后的Tung/Dhir流型转变模型与实验符合较好.依据单相流动压降数据,对Ergun公式参数进行了拟合,提出了适用于本实验特点的单相压降公式.并在此基础上利用渗透率系数提出了两相流动压降计算经验公式,与前人的公式相比,适用范围更广,计算误差也较小.
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