Journal of Fluids Engineering: Recent submissions
Now showing items 2781-2800 of 9024
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What is the Small Parameter ε in the Chapman-Enskog Expansion of the Lattice Boltzmann Method?
(The American Society of Mechanical Engineers (ASME), 2012)The lattice Boltzmann method (LBM) is shown to be equivalent to the Navier-Stokes equations by applying the Chapman-Enskog (C-E) expansion, which has been established by pioneer researchers. ... -
Incompressible Laminar Developing Flow in Microchannels
(The American Society of Mechanical Engineers (ASME), 2012)In many engineering systems, such as compact heat exchangers and microcoolers used in electronics packaging, system performance depends on laminar flow development in microchannels. This study ... -
An Experimental Study on the Effect of Oil Viscosity and Wear-Ring Clearance on the Performance of an Industrial Centrifugal Pump
(The American Society of Mechanical Engineers (ASME), 2012)The clearance of wear-rings in the impeller of centrifugal pumps has an important influence on the pump’s performance. Unfortunately, this effect has not been quite well documented, especially ... -
Wake Formation From a Pair of Circular Cylinders Traversing Between Small- and Large-Incidence Flow Regimes
(The American Society of Mechanical Engineers (ASME), 2012)Cross flow past a pair of equal-diameter staggered circular cylinders, with either one of the pair subject to forced harmonic transverse oscillation, is investigated experimentally within Reynolds ... -
Optimum Configuration of an Expanding-Contracting-Nozzle for Thrust Enhancement by Bubble Injection
(The American Society of Mechanical Engineers (ASME), 2012)This paper addresses the concept of thrust augmentation through bubble injection into an expanding-contracting nozzle. Two-phase models for bubbly flow in an expanding-contracting nozzle are ... -
Steady Laminar Axisymmetrical Nozzle Flow at Moderate Reynolds Numbers: Modeling and Experiment
(The American Society of Mechanical Engineers (ASME), 2012)Flow through an axisymmetrical parameterized contraction nozzle of limited size with area contraction ratio 21.8 and total length 6 cm is studied for moderate Reynolds numbers 300 < Re < ... -
Highly Compressible Porous Media Flow near a Wellbore: Effect of Gas Acceleration
(The American Society of Mechanical Engineers (ASME), 2012)A fundamental study on porous medium flow of a highly compressible gas near a wellbore is carried out. The effect of gas acceleration is assessed quantitatively. It is shown that gas acceleration ... -
Mean Concentration Field of a Jet in a Uniform Counter-Flow
(The American Society of Mechanical Engineers (ASME), 2012)An experimental investigation of the scaling factors of mean scalar concentration field of jets issuing into a uniform counter-flow stream is presented. The centerline decay and radial spreading ... -
Numerical Simulation of Laminar Confined Radial Flow Between Parallel Circular Discs
(The American Society of Mechanical Engineers (ASME), 2012)In this work, a fluid jet is issued axially from a short, circular nozzle and then fed radially outward through the clearance of two parallel circular discs. The disc assembly was considered ... -
A Novel Adiabatic Pipe Flow Equation for Ideal Gases
(The American Society of Mechanical Engineers (ASME), 2012)Compressible flow involves variation in the density with changes in pressure and temperature along the pipe length. This article revisits the conventional adiabatic pipe flow equation and finds ... -
Flow Analysis and Assessment of Loss Models in the Symmetric Volute of a Turbo-Blower
(The American Society of Mechanical Engineers (ASME), 2012)The objectives of the present study were to investigate the flow structure and assess the accuracy of loss correlations in the symmetric volute of a turbo-blower using 3D steady flow analysis ... -
Aerodynamics of Fixed and Rotating Spoked Cycling Wheels
(The American Society of Mechanical Engineers (ASME), 2012)The performance of a semiracing spoked wheel is numerically and experimentally studied at full size in a wind tunnel. The numerical investigation is divided into two parts. In the first part, ... -
Velocity Profiles in a Cylindrical Liquid Jet by Reconstructed Velocimetry
(The American Society of Mechanical Engineers (ASME), 2012)An experimental setup and a simple reconstruction method are presented to measure velocity fields inside slightly tapering cylindrical liquid jets traveling through still air. Particle image ... -
Secondary Instabilities in Incompressible Axisymmetric Boundary Layers: Effect of Transverse Curvature
(The American Society of Mechanical Engineers (ASME), 2012)The secondary instability of the incompressible boundary layer in the axial flow past a cylinder is studied. The laminar flow is shown to be always stable at high transverse curvatures to ... -
Influence of Flow Coefficient and Flow Structure on Rotational Cavitation in Inducer
(The American Society of Mechanical Engineers (ASME), 2012)Cavitation instability is a major vibration source in turbopump inducers, and its prevention is a critical design problem in rocket-engine development. As reported by Kang et al. , (2009, “Cause ... -
Numerical Simulation of Low Specific Speed American Petroleum Institute Pumps in Part-Load Operation and Comparison With Test Rig Results
(The American Society of Mechanical Engineers (ASME), 2012)A low specific speed centrifugal pump is investigated by means of numerical simulation, especially in deep part-load operation. The 3D computational fluid dynamics (CFD) model includes the front ... -
Continuous Deposition of a Liquid Thread onto a Moving Substrate. Numerical Analysis and Comparison With Experiments
(The American Society of Mechanical Engineers (ASME), 2012)The printing of a thin line of liquid onto a moving flat solid substrate was studied numerically. For a fixed value of the Capillary number, the window of steady state deposition was explored ... -
A Statistical Method on Meridional Profiles of Centrifugal Pumps
(The American Society of Mechanical Engineers (ASME), 2012)A method based on the medial axis transform (MAT) theory is presented to explore the laws of meridional profiles versus specific speeds for centrifugal pumps. Through extracting each pump’s MAT ... -
Analysis and Simulation of a Micro Hydrocyclone Device for Particle Liquid Separation
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents a three-dimensional simulation of a micro hydrocyclone for the separation of micron sized particles from liquid in a particulated sample. A theoretical analysis is performed ... -
A Brief History of the ASME Journal of Fluids Engineering
(The American Society of Mechanical Engineers (ASME), 2012)When the American Society of Mechanical Engineers was founded in 1880, the subject of fluids engineering was fractured and awkward. The existing theories were primarily for inviscid fluids and ...