After selecting the mathematical modal exactly and defining the boundary condition accurately, this thesis simulates the flow field of the normal hydrocyclone, with water as medium.

• 通过合理的选择数学模型和正确的设定边界条件，结合流体力学中的旋转流、组合涡理论以及水力旋流器相关理论和试验结论，仿真分析以清水为介质的内部流场。