No abstract

In this paper, the deflection characteristics of incompressible fluid trajectories in nonuniform vertical perforations are investigated. The hydrodynamic equations of the model are established based on the basic equations of fluid mechanics and finite element analysis methods. The effect of the difference in diameter between the two sides of the hole and the control of the incident fluid parameters on the trajectory deflection produced by the fluid is shown. The results show that: 1. The aqueous fluid is deflected towards the side of the hole with the larger diameter by the nonequivalent vertical throughhole structure. The deflection angle increases with increasing nonequivalent ratio and decreases with increasing incident fluid pressure.2 In order to achieve directional deflection of vertically incident aqueous fluids, the nonlinear coupling between incident fluid pressure and vertical span is investigated in this paper and suitable equations are developed.3. From the results, the incompressible aqueous fluid cannot achieve natural vortex initiation in a vortex tube where the inlet axis is the same as the vortex chamber axis, with a maximum deflection of 0.12 mm in the vortex chamber.4. If | λ2 -λ3 | is increased to 2.45 without considering the constraint that the diameter of the model vortex chamber is larger than the height of the vortex chamber, the water body can shoot out of the vortex chamber while its tangential velocity can reach 22.07 m/s, which can produce the spiral effect.