Discussion of 'Influence of Entrapped Air Pockets on Hydraulic Transients in Water Pipelines' by Ling Zhou, Deyou Liu, Bryan Karney, and Qinfen Zhang.

The article discusses the influence of entrapped air pockets on the water pipeline with hydraulic transients. It says that a simplified model has been proposed to create the pressure variations on pipeline that contains an entrapped air pocket. It states that short water column near the air-water interface results on liquid inertia and energy loss. It adds that the result shows that the proposed model accurately predicts peak pressures.