Journal of Fluids Engineering: Recent submissions
Now showing items 6481-6500 of 9024
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Numerical Simulation of Flows Driven by a Torsionally Oscillating Lid in a Square Cavity
(The American Society of Mechanical Engineers (ASME), 1992)Numerical studies were made of the flow of a viscous fluid in a two-dimensional square container. The flows are driven by the top sliding wall, which executes sinusoidal oscillations. Numerical ... -
Simulation of Three-Dimensional Shear Flow Around a Nozzle-Afterbody at High Speeds
(The American Society of Mechanical Engineers (ASME), 1992)Turbulent shear flows at supersonic and hypersonic speeds around a nozzle-afterbody are simulated. The three-dimensional, Reynolds-averaged Navier-Stokes equations are solved by a finite-volume and ... -
Decay of Temperature Variance in the Presence of Nonhomogeneous Strain
(The American Society of Mechanical Engineers (ASME), 1992)The effect of nonhomogeneous strain caused by two-dimensional objects on single point statistical properties of the turbulent velocity and turbulent scalar (temperature) and their cross moments ... -
Flow Past Circular Cylinder With Different Surface Configurations
(The American Society of Mechanical Engineers (ASME), 1992)Measurements of the mean pressure distributions and Strouhal numbers on partially grooved cylinders with different groove subtend angles were made over a Reynolds number range of 2.0×104 to ... -
Effect of Passenger Car’s Rear Deck Geometry on Its Aerodynamic Coefficients
(The American Society of Mechanical Engineers (ASME), 1992)The effects of aerodynamic modifications near the rear deck of a passenger-car based race car were investigated experimentally. The modifications were evaluated on a quarter-scale wind tunnel ... -
A Note on a Generalized Eddy-Viscosity Hypothesis
(The American Society of Mechanical Engineers (ASME), 1992)The standard eddy-viscosity concept postulates that zero velocity gradient is accompanied by zero shear stress. This is not true for many boundary layer flows: wall jets, asymmetric channel ... -
Questions in Fluid Mechanics
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Numerical Analysis of Gas-Particle Two-Phase Subsonic Freejets
(The American Society of Mechanical Engineers (ASME), 1992)This paper describes a numerical analysis of gas-droplet two-phase subsonic free jets in the axisymmetric system. Thermal coupling through heat transfer to droplets, as well as momentum coupling ... -
Water Quality Effects on Cavitation Inception in a Trailing Vortex
(The American Society of Mechanical Engineers (ASME), 1992)Tip vortex cavitation studies were made with a hydrofoil that was elliptical in planform, with an aspect ratio of 3, and having a modified NACA 662 -415 profile. LDV measurements of the ... -
A Note on Choking Cavitation Flow Past Bluff Bodies
(The American Society of Mechanical Engineers (ASME), 1992)A model is developed to predict the choking cavitation number for sharp edged bluff bodies subject to wall interference effects. The fact that the forebody pressure distribution under cavitating ... -
Applicability Tests for the Phase Doppler Anemometer for Cavitation Nuclei Measurements
(The American Society of Mechanical Engineers (ASME), 1992)A compromise between a reliable phase-diameter relationship and a good imaging of the control volume is necessary for the application of the PDA-instrument when measuring cavitation nuclei. The ... -
Hydrodynamics of Two-Phase Flow Across Horizontal In-line and Staggered Rod Bundles
(The American Society of Mechanical Engineers (ASME), 1992)The void fraction and friction pressure drop measurements have been made for vertical two-phase flow of air-water across staggered and in-line rod bundles with different pitch-to-diameter ratios. ... -
Experimental Investigation of Uniform-Shear Flow Past a Circular Cylinder
(The American Society of Mechanical Engineers (ASME), 1992)Extensive laboratory experiments were carried out to investigate the uniform-shear flow approaching a circular cylinder. The aim was to present the Strouhal number (St)- Reynolds number (Re) ... -
The Measurement of Solid-Liquid Contact Angles
(The American Society of Mechanical Engineers (ASME), 1992)A new method is proposed for measuring solid-liquid contact angles. The well-known phenomenon where the liquid meniscus formed under a downward facing solid surface spontaneously breaks at a ... -
Quantitative Visualization of the Flow Within the Volute of a Centrifugal Pump. Part A: Technique
(The American Society of Mechanical Engineers (ASME), 1992)This paper describes a series of quantitative flow visualization experiments within the volute of a centrifugal pump by implementing the “Particle Displacement Velocimetry” method (PDV or PIV). ... -
Quantitative Visualization of the Flow Within the Volute of a Centrifugal Pump. Part B: Results and Analysis
(The American Society of Mechanical Engineers (ASME), 1992)PDV is used for measuring the velocity within the volute of a centrifugal pump at different impeller blade orientations, on and off design conditions. It is demonstrated that the flow is ... -
Numerical Study of the Effects of Longitudinal Acceleration on Solid Rocket Motor Internal Ballistics
(The American Society of Mechanical Engineers (ASME), 1992)The internal ballistics of a solid-propellant rocket motor subjected to both constant and oscillatory longitudinal accelerations are studied. The one-dimensional time-dependent equations of motion ... -
Motion of a Particle Floating on a Liquid Meniscus Surface
(The American Society of Mechanical Engineers (ASME), 1992)A small particle floating on a liquid meniscus surface near a vessel wall tends to approach the wall spontaneously. This particle behavior was theoretically investigated. Because of the solid-liquid ... -
The Magnitude of Basset Forces in Unsteady Multiphase Flow Computations
(The American Society of Mechanical Engineers (ASME), 1992)The equation of motion of a small spherical particle moving in a fluid is solved numerically with the radius of the sphere and the ratio of fluid to particle densities being parameters. The ... -
Effect of Density, Size Distribution, and Concentration of Solid on the Characteristics of Centrifugal Pumps
(The American Society of Mechanical Engineers (ASME), 1992)Experimental data on the performance of the centrifugal pumps pumping mixtures of solids and water have been presented. The solids used were coal of density 1480 kg/m3 and zinc tailings of ...