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Turbomachinery Design and Analysis

CFD technology is used routinely for turbomachinery performance analysis and design optimizations for a wide range of turbomachines, including industrial compressors, turbines, pumps for both axial and centrifugal stages, large or small gas turbine compressors with multiple blade rows, marine compressors, fans, blowers, turbochargers, rocket turbopumps, etc. The CFD analysis is easily extended to include integral components for turbomachines like volutes and diffusers to address stage performance through rotor-stator multiple frame of reference calculations.

Based on the CFD analysis, turbomachinery global performance parameters such as efficiency and pressure ratio can easily be obtained. In addition, detailed local flowfield characteristics provide in-depth understanding of flow physics in blade rows, cavities, cooling flow passages, etc. The computed results are used to modify the machine geometry (blade count, blade metal, lean, and wrap angles, hub and shroud contours, splitter configurations, blade loading) during design iterations. At the final stage of the design process, a numerical machine performance map for various flow rates and rotational speeds for the machine of interest can be obtained using CFD.