Abstract
A numerical technique for the analysis of three-dimensional compressible turbulent flows in a turbine stage is presented .To calculate the steady interaction flow fields in a nozzle and bucket simultaneously, the nozzle outlet elements and the bucket inlet elements are overlapped in the axial direction and are used for connecting boundary elements. To calculated the flows in arbitrarily shaped geometries, a control volume method combined with a body-fitted curvilinear coordinate system is used to obtain spatially discretized governing equations. In the present analysis, a two-equation model of turbulence is introduced to estimate the turbulence effect. In order to assure the effectiveness of the present method, a computation is carried out for the flow in a model turbine stage. Experimental data is also obtained by the use of a 5-hole pitot tube for the purpose of comparison with computational results. It is shown that three-dimensional flow phenomena due to the viscous effect are well predicted and the comparisons with experimental data give encouraging results for three-dimensional flow prediction in a turbine stage.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
