Journal of Fluids Engineering: Recent submissions
Now showing items 4581-4600 of 9024
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Experimental Study of the Flow in a Compact Heat Exchanger Channel With Embossed-Type Vortex Generators
(The American Society of Mechanical Engineers (ASME), 2003)The isothermal flow in a model channel of plate-fin heat exchanger with periodically arranged embossed-like vortex generators is investigated. Velocity measurements are performed by LDA in the ... -
The Forced Oscillations of Submerged Bodies
(The American Society of Mechanical Engineers (ASME), 2003)The increasing use of very light structures in aerospace applications are given rise to the need of taking into account the effects of the surrounding media in the motion of a structure (as ... -
A Criterion to Define Cross-Flow Fan Design Parameters
(The American Society of Mechanical Engineers (ASME), 2003)The paper presents an original criterion to parameterize systematically a cross-flow fan configuration according to the most significant variables defining the geometry and then affecting performance ... -
A Systematic Experimental Approach to Cross-Flow Fan Design
(The American Society of Mechanical Engineers (ASME), 2003)A systematic investigation of cross-flow fan performances is presented according to an original criterion for the parameterization of fan geometry. Test facility and procedures are set up following ... -
Fluid Dynamic Aspects of Electrostatic Precipatators: Turbulence Characteristics in Scale Models
(The American Society of Mechanical Engineers (ASME), 2003)The present work originated in an investigation on fluid dynamic aspects of electrostatic precipitators performed on scale models of an industrial apparatus. The experimental analysis of velocity ... -
Analysis of Transient Flow in Pipes With Expanding or Contracting Sections
(The American Society of Mechanical Engineers (ASME), 2003)The classical theory of liquid transient flow in pipelines (waterhammer) usually draws on the following basic assumptions, 1234: -
Entrainment Velocity in an Axisymmetric Turbulent Jet
(The American Society of Mechanical Engineers (ASME), 2003)Mean radial and turbulent radial velocity profiles were measured in a circular jet at up to 40 jet diameters downstream of the jet exit using an LDA. The mean radial velocity in the ambient ... -
Modeling of Turbulent Fluid Flow Over a Rough Wall With or Without Suction
(The American Society of Mechanical Engineers (ASME), 2003)The turbulent flow close to a wall with two-dimensional roughness is computed with a two-layer zonal model. For an impermeable wall, the classical logarithmic law compares well with the numerical ... -
Concentration Probe Measurements in a Mach 4 Nonreacting Hydrogen Jet
(The American Society of Mechanical Engineers (ASME), 2003)A new probe technique is introduced for the measurement of concentration in binary gas flows. The new technique is demonstrated through application of the probe in a Mach 4 nonreacting jet ... -
Influence of Roughness on the Two-Phase Flow Structure of Sheet Cavitation
(The American Society of Mechanical Engineers (ASME), 2003)The purpose of this work is to describe the two-phase flow structure of sheet cavitation. The experimental study is performed in a cavitation tunnel equipped with a Venturi-type test section. ... -
Numerical Study of Sheet Cavitation Breakoff Phenomenon on a Cascade Hydrofoil
(The American Society of Mechanical Engineers (ASME), 2003)Two-dimensional unsteady cavity flow through a cascade of hydrofoils is numerically calculated. Particular attention is focused on instability phenomena of a sheet cavity in the transient cavitation ... -
The Discharge Coefficient of a Planar Submerged Slit-Jet
(The American Society of Mechanical Engineers (ASME), 2003)The discharge coefficient, CD, of a planar, submerged slit-jet has been determined experimentally over a relatively wide range of Reynolds number values: Re=100–6500, where the slit width (w) ... -
An Evaluation of a Two-Fluid Eulerian-Liquid Eulerian-Gas Model for Diesel Sprays
(The American Society of Mechanical Engineers (ASME), 2003)A two fluid Eulerian-liquid Eulerian-gas (ELEG) model for diesel sprays is developed. It is employed to carry out computations for diesel sprays under a wide range of ambient and injection ... -
Effect of Reynolds Number and Surface Roughness on the Efficiency of Centrifugal Pumps
(The American Society of Mechanical Engineers (ASME), 2003)A procedure has been developed to predict the effects of roughness and Reynolds number on the change in efficiency from a model or baseline to a prototype pump (“efficiency scaling”). The ... -
Out-of-Plane Motion Effects in Microscopic Particle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 2003)In microscopic particle image velocimetry (microPIV) experiments, the entire volume of a flowfield is illuminated, resulting in all of the particles in the field of view contributing to the ... -
Turbulent Boundary Layers Over Surfaces Smoothed by Sanding
(The American Society of Mechanical Engineers (ASME), 2003)Flat-plate turbulent boundary layer measurements have been made on painted surfaces, smoothed by sanding. The measurements were conducted in a closed return water tunnel, over a momentum thickness ... -
Frictional Performance of U-Type Wavy Tubes
(The American Society of Mechanical Engineers (ASME), 2003)Measurements of the pressure drops for water flowing in small diameter tubes having U-type wavy configuration are presented. The inner diameters of the test copper tubes (D) are 3.43, 5.07, ... -
Entrainment Characteristics of Transient Turbulent Round, Radial and Wall-Impinging Jets: Theoretical Deductions
(The American Society of Mechanical Engineers (ASME), 2003)Expressions for the mass entrained in transient turbulent radial and wall-impinging jets are derived by employing scaling laws derived for quasi-steady jets. Quantitative values of the mass ... -
Conservatism of the Grid Convergence Index in Finite Volume Computations on Steady-State Fluid Flow and Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2003)This note presents observations on 1 relevant to the evaluation of the adequacy of the conservatism of my grid convergence index (GCI) method of uniform reporting of grid convergence studies ... -
Air Entrainment Processes in a Circular Plunging Jet: Void-Fraction and Acoustic Measurements
(The American Society of Mechanical Engineers (ASME), 2003)Circular plunging jets were studied by both void fraction and acoustic techniques. There were two aims: to measure the structure of the jet flow and its regimes as a function of jet speed ...