Abstract: Improved onedimensional (1D) models—compared to previous work by the authors—are proposed which are able to predict the velocity, length, and position of the liquid column in the rapid emptying and filling of a pipeline. ...

Abstract: AbstractUnderstanding the physical mechanisms of air–water flow in pipelines is essential for optimizing the design of pressurized fluid transport systems. A three-dimensional (3D) computational fluid dynamics (CFD) model ...