Journal of Fluids Engineering: Recent submissions
Now showing items 4481-4500 of 9024
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Numerical Analysis of Fully Developed Flow in Curved Square Ducts With Internal Fins
(The American Society of Mechanical Engineers (ASME), 2004)The laminar incompressible flow in a curved square duct with two or four internal longitudinal fins is studied numerically with the SIMPLE method. The results show an increase of the friction ... -
A Simplified Model for Determining Interfacial Position in Convergent Microchannel Flows
(The American Society of Mechanical Engineers (ASME), 2004)Previous experimental and computational studies have indicated that interfaces formed in steady, converging microchannel flows with similar liquids tend to be planar in nature under a variety of ... -
Three-dimensional Hybrid Continuum-Atomistic Simulations For Multiscale Hydrodynamics
(The American Society of Mechanical Engineers (ASME), 2004)We present an adaptive mesh and algorithmic refinement (AMAR) scheme for modeling multi-scale hydrodynamics. The AMAR approach extends standard conservative adaptive mesh refinement (AMR) algorithms ... -
Single Grid Error Estimation Using Error Transport Equation
(The American Society of Mechanical Engineers (ASME), 2004)This paper presents an approach to quantify the discretization error as well as other errors related to mesh size using the error transport equation (ETE) technique on a single grid computation. ... -
Inverse Design and Optimization of a Return Channel for a Multistage Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2004)The design and optimization of a multistage radial compressor vaneless diffuser, cross-over and return channel is presented. An analytical design procedure for 3D blades with prescribed load ... -
Characteristics of the Liquid Film and Pressure Drop in Horizontal, Annular, Two-phase Flow Through Round, Square and Triangular Tubes
(The American Society of Mechanical Engineers (ASME), 2004)A unique set of liquid film thickness and pressure drop data has been obtained for horizontal, annular flow of air and water through round, square and triangular tube using a noninvasive, ... -
Factorial Design Applied to CFD
(The American Society of Mechanical Engineers (ASME), 2004)Factorial design, a statistical method widely used for experiments, and its application to CFD are discussed. The aim is to propose a systematic, objective, and quantitative method for engineers ... -
An Experimental Investigation of Thermal Effects in a Cavitating Inducer
(The American Society of Mechanical Engineers (ASME), 2004)The thermal effects which affect the development of leading edge cavitation in an inducer were investigated experimentally using refrigerant R114. For different operating conditions, the evolution ... -
Quasi-Three-Dimensional Analysis of Cavitation in an Inducer
(The American Society of Mechanical Engineers (ASME), 2004)A method for the prediction of steady cavitation in turbopumps is proposed on the assumption that the fluid is inviscid and the stream surface is rotationally symmetric. The analysis in the ... -
Investigation of the Role of Polymer on the Delay of Tip Vortex Cavitation
(The American Society of Mechanical Engineers (ASME), 2004)Cavitation tunnel measurements have shown tip vortex cavitation inception is delayed when polymers are injected from the hydrofoil tip. Experiments with polymers have also shown that the polymers ... -
PIV Investigations of the Flow Field in the Volute of a Rotary Blood Pump
(The American Society of Mechanical Engineers (ASME), 2004)A full-size acrylic model of a rotary blood pump was developed in order to utilize Particle Image Velocimetry (PIV) to make measurements of the fluid velocities and turbulent stresses throughout ... -
Shape Optimization of Forward-Curved-Blade Centrifugal Fan with Navier-Stokes Analysis
(The American Society of Mechanical Engineers (ASME), 2004)In this paper, the response surface method using a three-dimensional Navier-Stokes analysis to optimize the shape of a forward-curved-blade centrifugal fan is described. For the numerical analysis, ... -
Effects of Gas Content in Fluid on Oscillating Frequencies of Self-Excited Oscillation Water Jets
(The American Society of Mechanical Engineers (ASME), 2004)The unsteady flow in and near cavity-type geometries, which belongs to a basic class of flow susceptible to self-excited oscillations, occurs in a variety of applications such as slotted-wall ... -
The Vibration Response of a Cantilevered Rectangular Cylinder in Cross-Flow Oscillation
(The American Society of Mechanical Engineers (ASME), 2004)It is well known that a large-amplitude oscillation called galloping 123 is generated, in addition to Kármán vortex excitation, for rectangular cylinders supported perpendicularly to a uniform ... -
Effect of Wall Roughness on Laminar Flow of Bingham Plastic Fluids through Microtubes
(The American Society of Mechanical Engineers (ASME), 2004)Miniaturization of traditional devices is in high demand for micro-electro-mechanical systems (MEMS). Examples include but are not limited to optics, communication and information systems, fluidics, ... -
The Response of a Turbulent Boundary Layer to Concentrated Suction Applied Through a Pair of Porous Wall Strips
(The American Society of Mechanical Engineers (ASME), 2004)Considerable effort has been devoted to the control of natural laminar-turbulent transition using various techniques, e.g., Refs. 1234. Out of all the techniques tested, suction has been found ... -
Characterization of Turbulent Flow in a Flume with Surfactant
(The American Society of Mechanical Engineers (ASME), 2004)Drag reduction in turbulent flow, by low concentrations of polymers, is well known since the publication on the phenomenon by Toms 1. Recently, biodegradable surface active agents (surfactants) ... -
Roughness Effects on the Mixing Properties in Open Channel Turbulent Boundary Layers
(The American Society of Mechanical Engineers (ASME), 2004)This paper investigates the effects of surface roughness on the transport and mixing properties in turbulent boundary layers created in an open channel. The measurements were obtained on a ... -
Frictional Resistance of Antifouling Coating Systems
(The American Society of Mechanical Engineers (ASME), 2004)An experimental study has been made to compare the frictional resistance of several ship hull coatings in the unfouled, fouled, and cleaned conditions. Hydrodynamic tests were completed in a ... -
Calculation of Friction Coefficients for Noncircular Channels
(The American Society of Mechanical Engineers (ASME), 2004)This paper presents a method for estimating a hydraulic resistance multiplier to enable approximate values of friction coefficients to be calculated for turbulent flows in noncircular channels ...