Numerical Calculation of the Last Stage and Diffuser of the Experimental Steam Turbine T10MW

Abstract

This master thesis deals with the modeling of the complete flow of steam turbine stage. The introduction presents a summary of information about the company Doosan Škoda Power. Next chapters are devoted to the distribution of steam turbines and their working process. Last chapter of theory deals with the theory of flow. The practical part is focused on the design geometry inverse model steam round blades in Autodesk Inventor, design of mesh in ANSYS Meshing and 3D numerical calculation of the turbine stage in ANSYS Fluent 19.1. It also has setting of CFD solver, calculation for at least two operational regimes with boundary conditions set on the base of experimental measurement. Data postprocessing, comparison between measured and calculated data, determination of stage flow parameters, losses and outlet flow fields.