Abstract
The paper deals with the results of aerodynamic research of flow through blade cascades at off-design conditions. Variations of inlet velocity vectors during the operation of the stage at off-design flow conditions are calculated and compared with experimental results. The detailed measurements provide data on aerodynamic parameters, kinetic energy losses and flow structure. Leading edge flow separation occurs mainly at off-design incidences and is proved to be the reason for the considerable kinetic energy loss increase. The occurrence of unsteady aerodynamic phenomena and forces at off-design performance of blade cascades is shown. The transonic flow structure is studied in detail and experimental data analysis and results of numerical calculations are presented.
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Schedule a callMore From: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
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