中文摘要：

针对井筒内气液两相流模型化困难，及目前还大多只是对静止流体中气泡的运动进行模型研究和分析的现状，运用势流理论建立了垂直上升圆管段塞流中气泡或Taylor泡运动的简化模型。该模型可以较好地计算运动流体中气泡的上升速度和气泡头部形状。并在总结前人研究的基础上，给出了考虑气泡表面张力的无量纲气泡上升速度Froude数的计算公式。研究结果表明，当Eotvos数E〈100时，表面张力对气泡的上升速度有非常明显的影响，而当Eo〉100时，气泡的上升速度受表面张力的影响很小。

英文摘要：

A simplified numerical flow model on bubble or Taylor bubble rising through liquid with initial velocity in vertical tubes is established based on potential flow theory. This model can properly calculate the head shape of Taylor bubble and its rising velocity. Furthermore, an equation of Froude number which represents the dimensionless rising velocity of Taylor bubble is presented considering the surface tension of bubbles. The impact of surface tension on rising velocity of bubble is obvious when Eo〈100, while the impact if small when Eo〉100.