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A Pressure Model for Open Rotor–Stator Cavities: An Application to an Adjustable-Speed Centrifugal Pump With Experimental Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For a centrifugal pump, the interaction between the leakage and the pressure profile in the side chambers is crucial to the performance and reliability of the pump. However, existing theoretical models for directly predicting ...
Numerical Flow Prediction in Inlet Pipe of Vertical Inline Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For a pump, the inlet condition of flow determines the outlet conditions of fluid (i.e., energy). As a rule to minimize the losses at the entry of pump, the bends should be avoided as one of the methods. But for the case ...
Multi-Objective Shape Optimization on the Inlet Pipe of a Vertical Inline Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Vertical inline pump is a single-stage single-suction centrifugal pump with a bent pipe before the impeller, which is usually used where installation space is a constraint. In this paper, with three objective functions of ...
Multi-Objective Shape Optimization on the Inlet Pipe of a Vertical Inline Pump
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Vertical inline pump is a single-stage single-suction centrifugal pump with a bent pipe before the impeller, which is usually used where installation space is a constraint. In this paper, with three objective functions of ...
Unsteady Simulation and Analysis of Energy Loss Mechanism of a Vertical Volute Pump Under Stall Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study comprehensively investigates the flow features and energy loss mechanisms under stall conditions based on computational fluid dynamics (CFD) and hydraulic loss visualization techniques. The three-dimensional ...
Lagrangian Analysis of Unsteady Partial Cavitating Flow Around a Three-Dimensional Hydrofoil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study employs an incompressible homogeneous flow framework with a transport-equation-based cavitation model and shear stress transport turbulence model to successfully reproduce the unsteady cavitating flow around a ...
Cavitation-Induced Unsteady Flow Characteristics in the First Stage of a Centrifugal Charging Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cavitation is the main factor that causes reliability problems in centrifugal charging pumps (CCPs) in nuclear power plants. In this study, the cavitation-induced unsteady flow characteristics of a CPR1000 CCP were ...