An Optimal Three-dimensional Design of Axial-flow Impeller

In consideration of magnetic driven sand washing apparatus, an optimal design plan for axial- flow impeller is put forward for improving the hydraulic performance of blades. Through CFD numer- ical simulation,the turbulent flow field inside the axial-flow impeller is analyzed. The effects of dif- ferent blade structures, blade numbers and flow guiding rods on the internal flow field under the same working condition are studied. According to the properties of internal flow field distribution,the re- lated parameters of the impeller are selected, the impeller structure is improved.The test indicates that the hydraulic performance of improved axial-flow impeller is raised by the feasibility of CFD anal- ysis on the optimal design of axial-flow impeller is proven.