LARGE-PARTICLE STUDY OF THE FLOW AROUND WORKING BLADES IN A STEAM TURBINE.

High supersonic velocities and a very complicated flow structure occur in the flow around the blade profiles in steam turbines, particularly the peripheral sections of the latter stages in low-pressure cylinders. It is impossible to predict details of the flow. Measurements on such blades are complicated and expensive. It is therefore desirable to use numerical simulation in a preliminary analysis of the flow structure. The large-particle method is now widely used, particularly for many aspects of gas dynamics, including the calculation of internal flows. This paper demonstrates its use in numerical examination of a new class of topics: calculating the flow around turbine blade profiles.