Partial steam admission in an axial turbine stage.

This dissertation deals with modeling of steam flow through the turbines stage with partial admission. Both methods, experimental and numerical, are described The mathematical model with different models of turbulence were developed, tested in CFD Fluent and compared with experimental result. the proper model of turbulence was chosen and described. Number of variants with different geometric and boundary conditions were computed. Special attention are given to detailed description of flow field in investigated area, with focus ob visualization of characteristic of variables, which could significantly influence the efficiency of turbine stage. In contrast to the experiment, numerical simulation gives us the possibility to monitor variables dependent both upon the location and the time. Also physical aspects of compressible stream flow through the turbine stage are described.Available from STL, Prague, CZ / NTK - National Technical LibrarySIGLECZCzech Republi