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RISImproved Prediction of Pump Performance Through the Rotation–Curvature Correction—An Experimental and Numerical Study of a Low-Specific-Speed Helico-Axial Compression Cell in Series
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Within turbomachines, turbulence production and redistribution are affected by system rotation and streamline curvature. However, the most frequently used turbulence models do not account for these effects. In the present ...
Backflow-Induced Negative Cross-Coupled Stiffness—A Numerical Study of Multistage Axial-Flow Impeller Rotordynamic Forces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Rotordynamic forces acting on impellers and turbines in multistage turbomachines can significantly influence rotor critical speeds. In axial-flow pumps with unshrouded impellers, fluid-induced lateral forces are ...