Prediction of Quasi - Fluid Performance in Different Volume Concentration of Deep Sea Mining

The centrifugal pump can not meet the technical requirements of deep-sea mining in performance and structure. Moreover, coarse particles and water was regarded as a research object. In order to study the performance of deep sea mining, this article uses a new type of electric pump as a model. At the same time, there are different diameter particles in deep-sea mining. The force of the coarse particles in the quasi-fluid is analyzed by CFturbo for 3D modeling and extracting the flow path of the quasi-fluid. The ICEM is used for the meshing, and the quasi-fluid at the concentration of 5%, 8% and 10% was selected. The Particle model was used for numerical simulation in CFX to predict the electric pump performance from the results obtained. Using two-stage electric pump to do the water test, the data obtained with the numerical simulation results are compared. It shows that when the particle concentration is 10% in the deep sea mining, the system is more stable and the efficiency and the head are more reasonable.