Journal of Fluids Engineering: Recent submissions
Now showing items 5061-5080 of 9024
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A Flow Visualization Study of Vortex Interaction With the Wake of a Sphere
(The American Society of Mechanical Engineers (ASME), 2000)A study of the interaction between an initially columnar intake vortex (hereinafter referred to as the primary vortex) and vortex structures in the wake of a single sphere (hereinafter referred ... -
Cavitation Nuclei and Bubble Formation—A Dynamic Liquid-Solid Interface Problem
(The American Society of Mechanical Engineers (ASME), 2000)A model of the formation of cavitation nuclei is developed assuming local detachment of the liquid at locations of concave solid surface topography. The detachment is attributed to diffusion ... -
On the Stability of Parallel Bubbly Cavitating Flows
(The American Society of Mechanical Engineers (ASME), 2000)This paper illustrates the effects of the dynamics of bubbles with arbitrary vapor-gas contents on the inviscid and viscous stability of two-dimensional parallel bubbly flows of low void fraction. ... -
Spectral Characteristics of Sheet/Cloud Cavitation
(The American Society of Mechanical Engineers (ASME), 2000)Cavitation observations were made using a highly instrumented 2D NACA 0015 hydrofoil mounted in a specially designed water tunnel. It was found that the dynamic characteristics of the cavitation ... -
The Use of Cavitating Jets to Oxidize Organic Compounds in Water
(The American Society of Mechanical Engineers (ASME), 2000)Exposure to ultrasonic acoustic waves can greatly enhance various chemical reactions. Ultrasonic acoustic irradiation of organic compounds in aqueous solution results in oxidation of these compounds. ... -
A Numerical Investigation of the Detachment of the Trailing Particle From a Chain Sedimenting in Newtonian and Viscoelastic Fluids
(The American Society of Mechanical Engineers (ASME), 2000)Particles sedimenting in a viscoelastic fluid form chains. It has been observed in experiments that, sometimes, the last particle in the chain gets detached. In this paper, we investigate this ... -
Optimization of a Deepening Load Acting on a Flexible Cable Towed Under Water
(The American Society of Mechanical Engineers (ASME), 2000)In this paper we examine the problem of flexible cable equilibrium in water flow, when the cable is loaded with an arbitrarily distributed load which is directed perpendicular to the flow. ... -
Turbulent Mixing, Viscosity, Diffusion, and Gravity in the Formation of Cosmological Structures: The Fluid Mechanics of Dark Matter
(The American Society of Mechanical Engineers (ASME), 2000)Self-gravitational structure formation theory for astrophysics and cosmology is revised using nonlinear fluid mechanics. Gibson’s 1996–2000 theory balances fluid mechanical forces with gravitational ... -
Nucleation and Bubble Dynamics In Vortical Flows
(The American Society of Mechanical Engineers (ASME), 2000)The cavitation inception process in trailing vortices has been studied for several years. One of the important findings from these studies is the strong sensitivity to nuclei size and number ... -
PIV Technique for the Simultaneous Measurement of Dilute Two-Phase Flows
(The American Society of Mechanical Engineers (ASME), 2000)A Particle Image Velocimetry (PIV) image processing technique has been developed which can be applied to solid-liquid two-phase turbulent flows. The main principle of the technique is to utilize ... -
A Conductance Based Solids Concentration Sensor for Large Diameter Slurry Pipelines
(The American Society of Mechanical Engineers (ASME), 2000)An instrument has been developed that measures the solids concentration in slurry pipelines ranging in diameter from 5–150 cm. The operating principle is based on conductance, and in contrast ... -
Effects of Air Entrainment on the Ability of Air Vessels in the Pressure Surge Suppressions
(The American Society of Mechanical Engineers (ASME), 2000)This paper describes a new and efficient model for the study of air entrainment effects on the responses of a typical horizontal air vessel. The effects of air entrainment on the pressure ... -
A Turbulent Model for Gas-Particle Jets
(The American Society of Mechanical Engineers (ASME), 2000)This work is concerned with turbulent diffusion in gas-particle flows. The cases studied correspond to dilute flows and small Stokes number, this implies that the mean velocity of the particles ... -
Direct Simulation of Droplet Flow With Mass Transfer at Interface
(The American Society of Mechanical Engineers (ASME), 2000)A direct simulation code has been developed to solve two-phase flow with mass transfer at the interface. The position of the interface is determined by solving a transport equation of the ... -
Erratum: “Large Eddy Simulation of Flow Past a Square Cylinder: Comparison of Different Subgrid Scale Models” [ASME J. Fluids Eng., 122, No. 1, pp. 39–47]
(The American Society of Mechanical Engineers (ASME), 2000)In the above paper, Eq. (4) was printed incorrectly. The correct equation appears below: -
A Method of Correlating Fully Developed Turbulent Friction in Triangular Ducts
(The American Society of Mechanical Engineers (ASME), 2000)Fanning factors in isosceles-triangular ducts are examined. Data obtained in the literature were examined for deviations from the smooth circular tube line. It was found that the constant C in ... -
A Computational Study of Bubble-Structure Interaction
(The American Society of Mechanical Engineers (ASME), 2000)The complex interaction between underwater explosion bubbles and nearby structures is studied using two-fluid computational fluid dynamics. Gravitational effects on bubble jetting are significantly ... -
Thin-Film Flow at Moderate Reynolds Number
(The American Society of Mechanical Engineers (ASME), 2000)Viscous, laminar, gravitationally-driven flow of a thin film over a round-crested weir is analyzed for moderate Reynolds numbers. A previous analysis of this flow utilized a momentum integral ... -
Two-Phase Flow Pressure Drop in Right Angle Bends
(The American Society of Mechanical Engineers (ASME), 2000)Gas-liquid two-phase bubbly flows in right angle bends have been studied. Numerical predictions of the flow in right angle bends are made from first principles using an Eulerian-Eulerian two-fluid ... -
Three-Dimensional Unsteady Simulation of Cavitating Flows in Injector Passages
(The American Society of Mechanical Engineers (ASME), 2000)Fully 3-D, unsteady, viscous simulations are performed on a plain-orifice pressure atomizer being fed by a manifold with a crossflow. This geometry replicates features present in both liquid ...