Effect of Incidence Angle of Tangential Jets on Liquid-solid Two-phase Flow at Concave Wall Surfaces
In order to study the effect of inlet angle of concave-wall jet on the behavior of discrete particles,the liquid-solid two-phase flow of circular wall jet was analyzed with a vertical cylinder as the main structure.Numerical simulation was applied to analyze the discrete particle trajectory,particle distribution,pressure,tangential velocity and residence time.The results showed that the diffusion angle of the discrete particles shrank with the increase of the jet inlet angle,which was 5.0° for β = 0° and only 1.5° for β = 45°.The distribution of inlet static pressure and the particle tangential velocity were less change with the increase of jet inlet angle,but the maximum and minimum residence time of particles with particle size less than 0.4 mm decreased significantly.This study can provide basic data on the effect of particle behavior in liquid-solid two-phase concave-wall jet,and can be referenced by the structural design of related equipment.
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