Research the influence of parameters of rated three-dimensional viscous flow on the prognostic characteristics of the axial pump

Results of rated research of flowing parts of the axial pump with rapidity coefficient of n S≈500 and the axial pump with n S≈1300 with the use of ANSYS CFX 12 program complex are presented. For the pump with n S≈500 it was researched the grid independence of the decision, and also influence of an arrangement of border division (an interface surface) between the rotating impeller and the fixed blades system of the straightening device in flowing part of the pump on results of calculation the integral parameters was investigated. For the pump with n S≈1300 the design procedure of integral characteristics was approved and comparison with results of experiment was is carried out. The first research makes recommendations about a distance choice to target border of rated area and distance to an interface surface. The second research shows good coordination of rated and experimental parameters, and therefore, about validity of an applied method.