By analyzing the impact factors of the vertical vortex,the relational expression between the formed type of vertical vortex and the intake Froude number,the circulation number and the submergence depth are founded.

• 通过分析旋涡形成的影响因素；建立了立轴旋涡的形成和类型；与佛汝德数、环量数和淹没水深三个参数的关系式.