Numerical Study for the Field of Solid-liquid Phases Flow in the Lift Pump of Cutter System of Exploitation
Abstract：The paper focus on the problem that the flow field inside of the double current lift pump and the hydraulic power property have not been grasped completely,and the effectiveness is not ideal and easy to wear.Using the software of Fluent,based on the Mixture model,RNG turbulence model and SIMPLEC algorithm,the paper calculated and analyzed the field of solid-liquid phases flow in double-channel pump with different partical density and concentration.The results show that when the partical density and volume concentration are increasing,the particle distribution in impeller is transferred from the back of impeller to the work face,and the particle in the volute is being accumulated from base circle to the peripheral wall,and solid-liquid phases is increasingly segregating,and the hydraulic efficiency of pump reduced and the lift decrease.The efficiency of double channel pump takes the volume concentration of solid phase at 15% as the maximum point.When below 15%,the pump efficiency increases with the increase of volume concentration,but when more than 15%,the efficiency decreases greatly with the increase of volume concentration.
Keywords：double channel pumpsolid-liquid phases flownumerical calculation
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 35-40 )