1) The factors related to the oblique flow, such as pressure difference, pressure and velocity gradients and the parameter of Ogee surface are also analysed.

2) Theoretical analysis demonstrates that the cause of this flow phenomenon is too thin Ogee surface.

3) In the existing numerical simulation analysis, there is less project's numerical calculation on ogee surface with bucket aerator , and most of its simulation is for a single water surface.

4) Its main problem in projects is cavitation damage of ogee section, which can be frequently found in the end, downstream baseboard and downstream sidewalls of ogee section.

5) This textual is a theoretical analysis of force on the angular ogee milling the flat surface in injection molds.

6) The turning section of the concrete dam on the right bank of Danjiangkou dam shows and ogee on plane, of which periodical deformation occurs under the impact of temperature for a long period.