Journal of Fluids Engineering: Recent submissions
Now showing items 4781-4800 of 9024
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Accurate Evaluation of the Loss Coefficient and the Entrance Length of the Inlet Region of a Channel
(The American Society of Mechanical Engineers (ASME), 2002)Evaluations of loss coefficient and entrance length in the inlet region of a channel are presented. Correlations and numerical values of these quantities are provided for Reynolds number ranging ... -
Effect of Radial Clearance on the Flow Between Corotating Disks in Fixed Cylindrical Enclosures
(The American Society of Mechanical Engineers (ASME), 2002)Numerical results are obtained for the isothermal laminar flow of air between a pair of disks attached to and rotating with a hub in a fixed cylindrical enclosure. The presence of radial ... -
Numerical Simulation of Viscoplastic Fluid Flows Through an Axisymmetric Contraction
(The American Society of Mechanical Engineers (ASME), 2002)Flows of viscoplastic fluids through sudden, conical axisymmetric contraction are studied. A finite-element numerical simulation is performed using a biviscosity approximation. Inertia is neglected. ... -
Inception of Turbulence in the Stokes Boundary Layer Over a Transpiring Wall
(The American Society of Mechanical Engineers (ASME), 2002)In this work, the onset of turbulence inside a rectangular chamber is investigated, with and without side-wall injection, in the presence of an oscillatory pressure gradient. Two techniques are ... -
Spreading of Nonuniform Jets in Wind
(The American Society of Mechanical Engineers (ASME), 2002)The steady flow due to a nonuniform source in an otherwise uniform stream is studied, the source taking the form of an upstream-pointing and a downstream-pointing slender jet, or sheet-jet. ... -
Analysis and Experiments on Three-Dimensional, Irregular Surface Roughness
(The American Society of Mechanical Engineers (ASME), 2002)Randomly placed, nonuniform, three-dimensional roughness with irregular geometry and arrangement is analyzed. New correlations are presented for such roughness for determination of magnitudes of ... -
A Comparison of Second-Moment Closure Models in the Prediction of Vortex Shedding From a Square Cylinder Near a Wall
(The American Society of Mechanical Engineers (ASME), 2002)A computational study is presented that examines the capability of various second-moment closure models in the prediction of two-dimensional, nonstationary flow around a square cylinder in proximity ... -
Discussion: “Vent Effects on the Response of a Proportional Fluid Amplifier” (Healey, A. J., 1968, ASME J. Basic Eng., 90, pp. 90–96)
(The American Society of Mechanical Engineers (ASME), 1968) -
Truncation Error Analysis in Turbulent Boundary Layers
(The American Society of Mechanical Engineers (ASME), 2002)The influence of turbulence model and numerical technique on RANS computations is discussed in the case of turbulent boundary layer flow on a flat plate. In particular, results are presented ... -
The Effects of Surface Roughness on the Mean Velocity Profile in a Turbulent Boundary Layer
(The American Society of Mechanical Engineers (ASME), 2002)Experimental measurements of the mean velocity profile in a canonical turbulent boundary layer are obtained for four different surface roughness conditions, as well as a smooth wall, at moderate ... -
A Universal, Nonintrusive Method for Correcting the Reading of a Flow Meter in Pipe Flow Disturbed by Installation Effects
(The American Society of Mechanical Engineers (ASME), 2002)A method is described that allows the correction of the reading of a flow meter that is exposed to pipe flow disturbed by installations upstream of the meter. The method is aimed at minimizing ... -
Discussion: “Radial Flow Velocity Field for Predicting Upper-Bound Solutions for Plane-Strain Extrusion” (Fenton, R. G., 1968, ASME J. Basic Eng., 90, pp. 45–50)
(The American Society of Mechanical Engineers (ASME), 1968) -
Continuous Wavelet Transforms of Instantaneous Wall Pressure in Slug and Churn Upward Gas-Liquid Flow
(The American Society of Mechanical Engineers (ASME), 2002)Continuous wavelet transforms are employed to determine the time-localized frequency content (scalogram) of instantaneous wall pressure signals in upward gas-liquid flow. The flow conditions correspond ... -
Finite Element Simulations of Free Surface Flows With Surface Tension in Complex Geometries
(The American Society of Mechanical Engineers (ASME), 2002)The finite-element program, ANSYS/FLOTRAN, has been enhanced at Release 5.7 to predict free surface flows with surface tension in complex geometries. The two-dimensional incompressible Navier-Stokes ... -
Does the Minimum Fluidization Exist?
(The American Society of Mechanical Engineers (ASME), 2002)This work proposes an equation giving the pressure drop of a gas flowing through a porous medium or a granular bed. The consequences for the onset of the fluidization are then discussed. It ... -
Film Thickness and Wave Velocity Measurements in a Vertical Duct
(The American Society of Mechanical Engineers (ASME), 2002)This paper describes the experimental investigation of an upward annular air-water flow in a duct with a 6.35 mm by 63.5 mm rectangular cross section. The test section was instrumented to ... -
A Cavitation Erosion Model for Ductile Materials
(The American Society of Mechanical Engineers (ASME), 2002)An analytical model is proposed for the prediction of cavitation erosion of ductile materials. It is based upon a physical analysis of the work-hardening process due to the successive bubble ... -
Mathematical Basis and Validation of the Full Cavitation Model
(The American Society of Mechanical Engineers (ASME), 2002)Cavitating flows entail phase change and hence very large and steep density variations in the low pressure regions. These are also very sensitive to: (a) the formation and transport of vapor ... -
High Reynolds Number, Unsteady, Multiphase CFD Modeling of Cavitating Flows
(The American Society of Mechanical Engineers (ASME), 2002)A preconditioned, homogeneous, multiphase, Reynolds Averaged Navier-Stokes model with mass transfer is presented. The model is preconditioned in order to obtain good convergence and accuracy ... -
Multi-Parameter Sensing With a Thermal Silicon Flow Sensor
(The American Society of Mechanical Engineers (ASME), 2002)We present a method for multi-parameter sensing in the application of thermal vector flow sensors. The method is based on the property that two independent signals can be obtained from a ...