Sharif Digital Repository

The design and optimization of axial flow compressor is of great importance due to its various industrial applications. Due to the time-consuming and costly procedures of design, manufacturing, and performance tests of the compressor, it is necessary to evaluate and modify its performance with simple, inexpensive and reliable methods before manufacturing the final design. One of the available methods is the results of the linear cascade tests. In this study, in order to investigate this issue and consider its usefulness, an incompressible linear cascade test bed was designed and established based on the mean section profile of the rotor and stator of the axial compressor of Sharif University... 

Prediction of axial flow turbine’s performance with different operating conditions due to the high costs and lack of reliable empirical data is always under developing. In this type of turbine, fluid flow is three-dimensional, viscous and highly turbulent. Nowadays, although a relatively detailed picture of the flow field can be obtained by the computational and numerical tools, but using of appropriate loss models in one-dimensional modeling for the performance prediction as well as optimization of the turbine in initial design phases, is a common trend.
In the current study, aerodynamic losses in the axial flow turbine are investigated. Several loss models for the axial flow turbines...