By Fluent software

the numerical model for the oblique stator in the first stage of high pressure cylinder of a supercritical 600 MW unit steam turbine was established to investigate the flow filed and energy conversion characteristics of the steam

under conditions with the static blade's inclination angle of 0°

30°

45°and 60°.The results show that

with an increase in the static blade's oblique angel

the pressure loss of the pressure side decreases

and the thickness of the boundary layer of the suction face decreases

thereby the flow loss and the profile loss decreases.The presence of oblique angle weakens the role of energy conversion.With an increase in the oblique angle

the steam velocity and flow angle at the static blade outlet decreases along the blade height direction

and the average kinetic energy at the outlet decreases.This may help improving the safety of the steam turbine.