Применение блочно-иерархического метода для определения гидродинамических характеристик обратимых гидромашин

Abstract

The approach to investigation of the water passage of the radial-axial hydraulic machines based on mathematical modeling of working process is presented. Advantages block-hierarchical approach to the system of multi-level description of the working process is defined. The overall structure of the mathematical description by means of dimensionless coefficients is presented. In addition, a block diagram for the pump and turbine operating modes of the hydraulic machine and algorithm for the general case of the numerical investigation of the 3D flow in the water passage of the aggregate are presented. The spatial calculation of fluid flow by using of the program complex is described. Features of the calculation in the program ANSYS-CFX are presented.