On hydromachine-building department of SPbGPU different methods and the software tools are developed for calculation of currents and losses in hydroturbines and reversible hydromachines, centrifugal and axial pumps. Computer-aided design (CAD) software of flowing passages of the bladed hydromachines are created. Software tools has pre-processing and post-processing interface, calculations and designing results are visualized, developed software tools are approved at execution of hydromachine flowing passages on the set parameters.