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RISMultifrequency Instability of Cavitating Inducers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Recent testing of high-speed cavitating turbopump inducers has revealed the existence of more complex instabilities than the previously recognized cavitating surge and rotating cavitation. This ...
Effect of Swirl on Rotordynamic Forces Caused by Front Shroud Pump Leakage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Unsteady forces generated by fluid flow through the impeller shroud leakage path of a centrifugal pump were investigated. The effect of leakage path inlet swirl (pump discharge swirl) on the ...
Cavitation Nuclei Population and Event Rates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To model the processes of cavitation inception, noise and damage, it is necessary to generate a model of the cavitation event rate which can then be coupled with the consequences of the ...
Lumped Parameter Model for Computing the Minimum Pressure During Mechanical Heart Valve Closure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cavitation inception threshold of mechanical heart valves has been shown to be highly variable. This is in part due to the random distribution of the initial and final conditions that ...
Dynamics of a Cavitating Propeller in a Water Tunnel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study investigates the unsteady dynamics and inherent instabilities of a cavitating propeller operating in a water tunnel. First, the steady characteristics of the cavitating propeller such ...
Numerical Computation of Shock Waves in a Spherical Cloud of Cavitation Bubbles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The nonlinear dynamics of a spherical cloud of cavitation bubbles have been simulated numerically in order to learn more about the physical phenomena occurring in cloud cavitation. A finite ...
Experimental Measurements of Rotordynamic Forces Caused by Front Shroud Pump Leakage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Unsteady forces generated by fluid flow through the impeller shroud leakage path of a centrifugal pump were investigated. Different pump shroud geometries were compared, and the effect of leakage ...
Analysis of the Fully Developed Chute Flow of Granular Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Existing constitutive relations and governing equations have been used to solve for fully developed chute flows of granular materials. In particular, the results of Lun et al. (1984) have been ...
Hydraulic Analysis of a Reversible Fluid Coupling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a hydraulic analysis of a fluid coupling which is designed to operate either in a forward or reverse mode when a set of turning vanes are respectively withdrawn or inserted ...
Measurements of Velocity, Velocity Fluctuation, Density, and Stresses in Chute Flows of Granular Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experiments on continuous, steady flows of granular materials down an inclined channel or chute have been conducted with the objectives of understanding the characteristics of chute flows and ...