Search
CSV
RISNumerical Analysis of Three Types of Cavitation Surge in Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present study, numerical analysis of a cavitating three-blade cyclic flat-plate cascade was performed considering cavitation surge, which is a type of cavitation instability in pumping ...
Unsteady Tip Leakage Vortex Cavitation Originating From the Tip Clearance of an Oscillating Hydrofoil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tip leakage vortex cavitations originating from the tip clearance of an oscillating hydrofoil were observed experimentally. It was found that the delay between the unsteady and the steady-state ...
Study of Vaneless Diffuser Rotating Stall Based on Two-Dimensional Inviscid Flow Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rotating stalls in vaneless diffusers are studied from the viewpoint that they are basically two-dimensional inviscid flow instability under the boundary conditions of vanishing velocity disturbance ...
Unbalanced Hydraulic Forces Caused by Geometrical Manufacturing Deviations of Centrifugal Impellers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When an impeller has geometrical manufacturing deviations, synchronous vibration occurs from an unbalanced hydraulic force rotating with the impeller. This phenomenon is termed “Hydraulic unbalance.” ...
Numerical Simulation for Vortex Structure in a Turbopump Inducer: Close Relationship With Appearance of Cavitation Instabilities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Unsteady cavitation phenomena such as rotating cavitation and cavitation surge are often observed in a turbopump inducer of a rocket engine, sometimes causing undesirable oscillation of the system. ...
Observations of Oscillating Cavitation of an Inducer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Oscillating cavitation of an inducer was observed through unsteady inlet pressure measurements and by use of high speed video picture, covering a wide range of flow coefficient and cavitation ...
Numerical Study of Rotating Stall in a Pump Vaned Diffuser
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper treats the flow instabilities in a vaned diffuser by using CFD. A commercial code with the standard κ-ε turbulence model was used for the present work. It was found that the flow ...
Thermodynamic Effect on a Cavitating Inducer in Liquid Nitrogen
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For experimental investigations of the thermodynamic effect on a cavitating inducer, it is nesessary to observe the cavitation. However, visualizations of the cavitation are not so easy in ...
Visualization Measurement and Numerical Analysis of Internal Flow in Cross-Flow Fan
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Measurements of the internal flow velocity distributions in a cross-flow fan were made by particle-tracking velocimetry (PTV). The flow paths (pathlines) were photographed using a digital camera ...
Fluid Force Moment on a Centrifugal Impeller Shroud in Precessing Motion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental results of fluid moment on a centrifugal impeller shroud in precessing motion are discussed based on the bulk flow model to elucidate the fundamental flow mechanism. It is shown ...