Calculation research of radial forces, operating on rotor of radial-axial hydroturbine

In work the method of determination non-stationary radial loads of the driving wheel of radial-axial hydroturbine, based on 3M calculations of incompressible liquid flow in the main flowing part and areas of leakages around the top and bottom of labyrinth seals is described. The method allows to calculate the radial loadings caused by flow non-uniformity in spiral camera and stator; rotor-stator interaction; flow non-uniformity behind the driving wheel owing to flow non-stationarity in draft tube cone (vortex rope, etc.); non-coaxiality of stator and rotor, bend of rotor shaft. Calculations are carried out in the program CADRUN complex. Creation of grid areas was carried out in ASTER system.