Journal of Fluids Engineering: Recent submissions
Now showing items 6141-6160 of 9024
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A Preliminary Parametric Study of Electrorheological Dampers
(The American Society of Mechanical Engineers (ASME), 1994)In approaching the design of an electrorheology-based, semi-active suspension, the electrorheological component (ER damper) can be built as either a flow-mode, shear-mode, or mixed-mode type of ... -
Rankine-Hugoniot Relations for Lennard-Jones Liquids
(The American Society of Mechanical Engineers (ASME), 1994)The purpose of the present study is to clarify the Rankine-Hugoniot relations for Lennard-Jones liquids. First, Monte Carlo simulations are conducted to evaluate the state quantities such as the ... -
Experimental Determination of Transition to Turbulence in a Rectangular Channel With Eddy Promoters
(The American Society of Mechanical Engineers (ASME), 1994)We report on laminar-to-turbulent transition in a rectangular channel in the presence of periodically placed cylindrical eddy promoters. Transition is identified through the analysis of power ... -
An Experimental Investigation of Cross-Flow Turbine Efficiency
(The American Society of Mechanical Engineers (ASME), 1994)An experimental investigation was conducted to study the effect of some geometric parameters on the efficiency of the cross-flow turbine. Turbine models were constructed with three different ... -
Time-Dependent Conjugate Heat Transfer Characteristics of Self-Sustained Oscillatory Flows in a Grooved Channel
(The American Society of Mechanical Engineers (ASME), 1994)Convective heat transport in a grooved channel is numerically investigated using a time-dependent formulation. Conjugate conduction/convection and uniform heat-flux representations for the solid ... -
Flow Structure in a Radial Flow Pumping System Using High-Image-Density Particle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 1994)Use of high-image-density particle image velocimetry (PIV) allows characterization of the instantaneous structure of wake and wake-blade interactions in a simulated rotating machine. The distribution ... -
The Wavenumber-Phase Velocity Representation for the Turbulent Wall-Pressure Spectrum
(The American Society of Mechanical Engineers (ASME), 1994)Wall-pressure fluctuations can be represented by a spectrum level that is a function of flow-direction wavenumber and frequnecy, Φ (k1 , ω). In the theory developed herein the frequency is ... -
Friction Factor for Flow in Rectangular Ducts With One Side Rib-Roughened
(The American Society of Mechanical Engineers (ASME), 1994)Numerical simulations of incompressible turbulent flow through rectangular ducts with one side rib-roughened were performed to determine pressure drop. The “PHOENICS” software package was used for ... -
Actively Controlled Radial Flow Pumping System: Manipulation of Spectral Content of Wakes and Wake-Blade Interactions
(The American Society of Mechanical Engineers (ASME), 1994)A unique, actively controlled pumping system allows independent control of inflow and impeller perturbations, as well as the phase shift between them. The basic configurations of an impeller and ... -
Evaluation of Flip-Flop Jet Nozzles for Use as Practical Excitation Devices
(The American Society of Mechanical Engineers (ASME), 1994)This paper describes the flowfield characteristics of the flip-flop jet nozzle and the potential for using this nozzle as a practical excitation device. It appears from the existing body of ... -
Quantitative Visualization of Surface Flows on Rotating Disks
(The American Society of Mechanical Engineers (ASME), 1994)A novel scheme for the visualization of surface flows is developed. It utilizes the strong adhesion forces between micrometer-sized particles and solid surfaces to register the surface streaklines, ... -
Supersonic Flow Calculations Using a Reynolds-Stress and a Thermal Eddy Diffusivity Turbulence Model
(The American Society of Mechanical Engineers (ASME), 1994)A second-order model for the velocity field and a two-equation model for the temperature field are used to calculate supersonic boundary layers assuming negligible real gas effects. The modeled ... -
A Correlation of Leakage Vortex Cavitation in Axial-Flow Pumps
(The American Society of Mechanical Engineers (ASME), 1994)Tip clearance flow in turbomachinery can lead to losses in efficiency and stall margin. In liquid handling turbomachinery, the vortical flow field, formed from the interaction of the leakage ... -
Experimental Correlations to Predict Fluid Resistance for Simple Pulsatile Laminar Flow of Incompressible Fluids in Rigid Tubes
(The American Society of Mechanical Engineers (ASME), 1994)The effects of oscillatory amplitude and frequency on fluid resistance for pulsatile incompressible laminar flow in rigid tubes were investigated analytically and experimentally. Analytical results ... -
Discussion: “A Radial Diffuser Using Incompressible Flow Between Narrowly Spaced Disks” (Moller, P. S., 1966, ASME J. Basic Eng., 88, pp. 155–162)
(The American Society of Mechanical Engineers (ASME), 1966) -
Rotordynamic Effects of the Shroud-to-Housing Leakage Flow in Centrifugal Pumps
(The American Society of Mechanical Engineers (ASME), 1994)The fluid/shroud interaction forces acting on a pump impeller that is precessing around the housing centerline, are computed and the rotordynamic coefficients deduced. The numerical procedure ... -
Performance of S-Cambered Profiles With Cut-Off Trailing Edges
(The American Society of Mechanical Engineers (ASME), 1994)The aerodynamic characteristics of an S-cambered profile are studied under forward and reversed flow conditions. The profile chord is cut by 3, 6, and 9 percent of the chord at the sharp ... -
Numerical Study on the Mechanism of Wind Noise Generation About a Car-Like Body
(The American Society of Mechanical Engineers (ASME), 1994)Three-dimensional flow separation about the sharp-edged front-pillar of a car-like body at high cruising speed is numerically studied. A time-dependent and full Navier-Stokes simulation is carried ... -
Assessment of the Martin-Hou Equation for Modeling a Nonclassical Fluid
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The Minimum Drag Profile in Laminar Flow: A Numerical Way
(The American Society of Mechanical Engineers (ASME), 1994)It would be of interest to engineers and scientists to know the shape of the body of a given volume that will have minimum drag when moving through a viscous fluid at constant speed. It ...