Journal of Fluids Engineering: Recent submissions
Now showing items 4521-4540 of 9024
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Parallel Particle Simulation of the Near-Continuum Hypersonic Flows Over Compression Ramps
(The American Society of Mechanical Engineers (ASME), 2003)This paper describes the analysis of the near-continuum hypersonic flow over a compression ramp using the two-dimensional parallel direct simulation Monte Carlo (DSMC) method. Unstructured and ... -
Ejector Irreversibility Characteristics
(The American Society of Mechanical Engineers (ASME), 2003)The present study analyzes and characterizes the irreversibility of the ejector’s internal processes in an effort to improve the understanding of the making of its overall performance. The ... -
An Improved Neural-Network-Based Calibration Method for Aerodynamic Pressure Probes
(The American Society of Mechanical Engineers (ASME), 2003)Calibration of multihole aerodynamic pressure probe is a compulsory and important step in applying this kind of probe. This paper presents a new neural-network-based method for the calibration ... -
Editorial
(The American Society of Mechanical Engineers (ASME), 2003)The end of 2002 brings about several changes to the Journal of Fluids Engineering. First, several Associate Editors have completed their terms and new ones have joined us. I would like to ... -
Experimental Characterization of Compact Heat Exchangers With Short Flow Lengths at Simulated Elevated Altitudes
(The American Society of Mechanical Engineers (ASME), 2003)This paper presents experimental pressure drop and heat transfer results of compact heat exchangers made with plain rectangular fins of short flowlengths tested with air at very low Reynolds ... -
Modeling Film Dynamics in Spray Impingement
(The American Society of Mechanical Engineers (ASME), 2003)A numerical and analytic study of film formation and evolution during spray impingement is presented. For the part of the film which excludes drop impact locations, the governing equations ... -
Shear-Driven Flow in a Toroid of Square Cross Section
(The American Society of Mechanical Engineers (ASME), 2003)The two-dimensional wall-driven flow in a plane rectangular enclosure and the three-dimensional wall-driven flow in a parallelepiped of infinite length are limiting cases of the more general ... -
Performance Analysis of a Two-Stage Electrohydraulic Servovalve in Centrifugal Force Field
(The American Society of Mechanical Engineers (ASME), 2003)Electrohydraulic servosystems are commonly used in various engineering applications due to their high power-to-weight ratio, good performance, and ease of control. Electrohydraulic servovalves are ... -
Effect of Pressure With Wall Heating in Annular Two-Phase Flow
(The American Society of Mechanical Engineers (ASME), 2003)The local distributions of void fraction, interfacial frequency, and velocity have been measured in annular flow of R-134a through a wall-heated, high aspect ratio duct. High aspect ratio ducts ... -
Comparative Evaluation of Some Existing Correlations to Predict Head Degradation of Centrifugal Slurry Pumps
(The American Society of Mechanical Engineers (ASME), 2003)In order to optimally design a slurry transportation system, it is necessary to know how the presence of solids will change the performance of the slurry pump to be installed. This paper ... -
Flow in a Centrifugal Pump Impeller at Design and Off-Design Conditions—Part I: Particle Image Velocimetry (PIV) and Laser Doppler Velocimetry (LDV) Measurements
(The American Society of Mechanical Engineers (ASME), 2003)Detailed optical measurements of the flow inside the rotating passages of a six-bladed shrouded centrifugal pump impeller of industrial design have been performed using particle image velocimetry ... -
Prediction of Turbulent Flow Over Rough Surfaces Using a Force Field in Large Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2003)A force field model to simulate turbulent flow over a surface with arbitrary roughness is described. A given roughness is decomposed into resolved and subgrid-scale roughness, conceptually similar ... -
Eulerian/Lagrangian Analysis for the Prediction of Cavitation Inception
(The American Society of Mechanical Engineers (ASME), 2003)An Eulerian/Lagrangian computational procedure was developed for the prediction of cavitation inception by event rate. The carrier-phase flow field was computed using an Eulerian Reynolds-averaged ... -
Conditional Sampling in a Transitional Boundary Layer Under High Freestream Turbulence Conditions
(The American Society of Mechanical Engineers (ASME), 2003)Conditional sampling has been performed on data from a transitional boundary layer subject to high (initially 9%) freestream turbulence and strong (K=(ν/U∞2)(dU∞/dx) as high as 9×10−6) ... -
Euler Number Based Orifice Discharge Coefficient Relationship
(The American Society of Mechanical Engineers (ASME), 2003)A new relationship for orifice flow meter discharge coefficients has been developed which replaces the Reynolds number dependence with the Euler number. Both relationships have the same accuracy ... -
Laminar, Gravitationally Driven Flow of a Thin Film on a Curved Wall
(The American Society of Mechanical Engineers (ASME), 2003)Gravitationally driven flow of a thin film down an arbitrarily curved wall is analyzed for moderate Reynolds number by generalizing equations previously developed for flow on a planar wall. In ... -
Flow in a Centrifugal Pump Impeller at Design and Off-Design Conditions—Part II: Large Eddy Simulations
(The American Society of Mechanical Engineers (ASME), 2003)The flow field in a shrouded six-bladed centrifugal pump impeller has been investigated using large eddy simulation (LES). The effect of the subgrid scales has been modeled through a localized ... -
Scaling Effect on Prediction of Cavitation Inception in a Line Vortex Flow
(The American Society of Mechanical Engineers (ASME), 2003)The current study considers the prediction of tip vortex cavitation inception at a fundamental physics based level. Starting form the observation that cavitation inception detection is based on ... -
Evaluation of the Turbulence Model Influence on the Numerical Simulations of Unsteady Cavitation
(The American Society of Mechanical Engineers (ASME), 2003)Unsteady cavitation in a Venturi-type section was simulated by two-dimensional computations of viscous, compressible, and turbulent cavitating flows. The numerical model used an implicit finite ... -
Analysis of Thin Film Flows Using a Flux Vector Splitting1
(The American Society of Mechanical Engineers (ASME), 2003)We propose a flux vector splitting (FVS) for the solution of film flows radially spreading on a flat surface created by an impinging jet using the shallow-water approximation. The governing ...