Numerical simulation and hydraulic optimization of the lateral oblique forebay

A large drainage pumping station by lateral oblique water way, which installed five shaft tubular pump, with single pump design flow 34m³ / s. The numerical simulated and hydraulic optimization is worked by using three-dimensional simulation software CFD on pumping station pool rectifier. Analysis results from numerical simulation: within a certain hydraulic losses range, the retaining water weir´s adding and improvement before the forebay match tunnel can significantly improve flow regime, and help to abate or eliminate lateral oblique flow drift phenomena by inertial function. Numerical simulation of the experimental results is reliable by the physical model results´ validation. It provides the reference research methods for pumping study with water lateral oblique ways.