Journal of Fluids Engineering: Recent submissions
Now showing items 6801-6820 of 9024
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Theory of Externally Pressurized Circular Thrust Porous Gas Bearing
(The American Society of Mechanical Engineers (ASME), 1965)The externally pressurized circular thrust gas bearing with porous bearing surface is analysed here theoretically. The authors use “permeability coefficient” which identifies the characteristic of ... -
Pressure Surges in Pipelines Carrying Viscous Liquids
(The American Society of Mechanical Engineers (ASME), 1960)An analytical solution which includes frictional effects is developed for the pressure occurring in a pipeline when Poiseuille flow is stopped by the sudden closure of a valve. Limitations and ... -
Design and Performance of Gas-Pressurized, Spherical, Space-Simulator Bearings
(The American Society of Mechanical Engineers (ASME), 1965)Space-simulator bearings of the externally pressurized gas-lubricated type must meet a number of unusually stringent requirements. Of primary importance is that they contribute as nearly as possible ... -
On Hydrodynamic Instability of Gas-Lubricated Journal Bearings
(The American Society of Mechanical Engineers (ASME), 1965)Paper starts with a study of static stability response of gas-lubricated bearing, followed by a general small perturbations theory of the dynamic stability of journal bearings. Then the pressure ... -
On the Behavior of Gas-Lubricated Journal Bearings Subjected to Sinusoidally Time-Varying Loads
(The American Society of Mechanical Engineers (ASME), 1965)Linearized steady-state time-dependent solutions to the equations of journal motion are obtained for sinusoidally time-varying radial loads by utilizing the “linearized ph” technique to approximate ... -
Analysis of Dispersion of Small Spherical Particles in a Random Velocity Field
(The American Society of Mechanical Engineers (ASME), 1990)The equation of motion of a small spherical rigid particle in a turbulent flow field, including the Stokes drag, the Basset force, and the virtual mass effects, is considered. For an isotropic ... -
Analysis of Venturi Performance for Gas-Particle Flows
(The American Society of Mechanical Engineers (ASME), 1990)In recent years, use of the venturi for measurement of gas-particle flows has received considerable attention. The technology for the venturi as a single-phase flowmeter has matured to the point ... -
The Prediction of Two-Phase Turbulence and Phase Distribution Phenomena Using a Reynolds Stress Model
(The American Society of Mechanical Engineers (ASME), 1990)The void fraction distribution for turbulent bubbly air/water upflows and downflows in a pipe was analyzed using a three-dimensional two-fluid model. A τ − ε (i.e., Reynolds stress) turbulence ... -
Characteristics of Herringbone-Grooved, Gas-Lubricated Journal Bearings
(The American Society of Mechanical Engineers (ASME), 1965)A differential equation is obtained for the smoothed “overall” pressure distribution around a herringbone-grooved, gas-lubricated journal bearing operating with a variable film thickness. The equation ... -
Editorial
(The American Society of Mechanical Engineers (ASME), 1990) -
Discussion: “Simulation of Vortex-Shedding Flow About a Circular Cylinder at High Reynolds Numbers” (Song, Charles C. S., and Yuan, Mingshun, 1990, ASME J. Fluids Eng., 112, pp. 155–161)
(The American Society of Mechanical Engineers (ASME), 1990) -
Prediction of Flows With Strong Curvature and Pressure Gradient Using the k–ε Turbulence Model
(The American Society of Mechanical Engineers (ASME), 1990)The k –ε turbulence model of Launder and Spalding has found widespread application in the computation of fluid flows. Under conditions of strong adverse pressure gradient or strong streamline ... -
Numerical Simulation of Turbulent Shear Flow in an Isothermal Heat Exchanger Model
(The American Society of Mechanical Engineers (ASME), 1990)Numerical predictions of fluid flow are reported for the isothermal, two-dimensional, axisymmetric flow in a disk-doughnut heat exchanger. The system consists of alternating and equi-spaced doughnut ... -
Experimental Investigations of Annular Liquid Curtains
(The American Society of Mechanical Engineers (ASME), 1990)Experiments have been performed to study the dynamics of vertical annular liquid curtains. Using a high and a low speed photographic recording technique, different modes of curtain formation ... -
Linearized PH Stability Theory for Finite Length, Self-Acting Gas-Lubricated, Plain Journal Bearings
(The American Society of Mechanical Engineers (ASME), 1965)Use of Ausman’s linearized, PH method to determine the threshold of half frequency whirl for a rigid rotor in self-acting cylindrical journal bearings is extended to include finite length ... -
Horizontal Slug Flow: A Comparison of Existing Theories
(The American Society of Mechanical Engineers (ASME), 1990)Over the last twenty years a number of papers have appeared in literature concerning the transition to slug flow in horizontal two-phase flow. The theories proposed in these papers are described, ... -
Statistical Analysis of Turbulent Two-Phase Pipe Flow
(The American Society of Mechanical Engineers (ASME), 1990)The statistical characteristics of turbulent two-phase pipe flow have been evaluated. In particular, the autocorrelation functions and the power spectral density functions of the axial turbulence ... -
A New Hydraulic Pressure Intensifier Using Oil Hammer
(The American Society of Mechanical Engineers (ASME), 1990)An oil hammer generates a greater pressure than that supplied to a pipeline, and sometimes causes equipment breakdown. The author intends to actively utilize this pressure rise. A new type of ... -
Effects of a Few Small Air Bubbles on the Performance of Circular Cylinder at Critical Flow Range in Water
(The American Society of Mechanical Engineers (ASME), 1990)In a horizontal flow channel an experimental study was made on the effects of a small amount of air bubbles on the performance of a circular cylinder at a critical flow range where the ... -
The Influence of the Wall on Flow Through Pipes Packed With Spheres
(The American Society of Mechanical Engineers (ASME), 1990)This paper presents the results of an experimental investigation that is a sequel to a previously published study of the flow of fluids through porous media whose matrices are composed of ...