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RISOnset of Flow Separation Phenomenon in a Low-Specific Speed Centrifugal Pump Impeller
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The efficiency of centrifugal pumps drops sharply when the flowrate is reduced below a threshold value. This is due to a profound change in the flow structure, characterized by a large of portion flow separation near the ...
Dynamic Stall Inception and Evolution Process Measured by High-Frequency Particle Image Velocimetry System in Low Specific Speed Impeller
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stall in centrifugal pumps is a complicated flow phenomenon, which is detrimental to the pumps' safety and stable operation. Using a high-frequency particle image velocimetry (PIV) system (f = 10k Hz) and a bench-scale ...