The elastic models for pipe flow of different pattems based on Taylor＇ s expansion commonly used in characteristic analysis of hydraulic-mechanical system at home and abroad as well as some advances in recent years were reviewed. Case study was performed to analyze the characteristic and application condition of other models based on the accurate model for water body in pressurized pipelines. The result shows that the elastic model deduced from the variation theory and Ritz-Galerkin approximation method is easy to be decoupled and widely applied, and it can give a direct description of high-order hydraulic characteristic of water body in pressurized pipelines. Finally, some main problems needed for further study were put forward.
Advances in Science and Technology of Water Resources