Journal of Fluids Engineering: Recent submissions
Now showing items 4741-4760 of 9024
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Numerical Simulation of the Dynamic Effects Due to Impeller-Volute Interaction in a Centrifugal Pump
(The American Society of Mechanical Engineers (ASME), 2002)This paper shows the capability of a numerical simulation in capturing the dynamic and unsteady flow effects inside a centrifugal pump due to the impeller-volute interaction. The object of the ... -
Numerical Study of Rotating Stall in a Pump Vaned Diffuser
(The American Society of Mechanical Engineers (ASME), 2002)This paper treats the flow instabilities in a vaned diffuser by using CFD. A commercial code with the standard κ-ε turbulence model was used for the present work. It was found that the flow ... -
Reliable Real-Time Solution of Parametrized Partial Differential Equations: Reduced-Basis Output Bound Methods
(The American Society of Mechanical Engineers (ASME), 2002)We present a technique for the rapid and reliable prediction of linear-functional outputs of elliptic (and parabolic) partial differential equations with affine parameter dependence. The essential ... -
Hydrodynamic Design of Pump Diffuser Using Inverse Design Method and CFD
(The American Society of Mechanical Engineers (ASME), 2002)A new approach to optimizing a pump diffuser is presented, based on a three-dimensional inverse design method and a Computational Fluid Dynamics (CFD) technique. The blade shape of the diffuser ... -
Concentration Measurements in a Pressurized and Heated Gas Mixture Flow Using Laser Induced Fluorescence
(The American Society of Mechanical Engineers (ASME), 2002)The fuel concentration in a pressurized and heated gas mixture flow was measured by LIF (laser induced fluorescence) technique. Diacetyl was used as the fluorescence tracer of fuel and was ... -
Oscillatory Flow in a Physical Model of a Thin Slab Casting Mould With a Bifurcated Submerged Entry Nozzle
(The American Society of Mechanical Engineers (ASME), 2002)Laser Doppler anemometry (LDA) measurements are presented of the oscillatory flow in a 33% scale water model of thin slab casting mould when the flow enters as two lateral jets through a ... -
Hydraulic Axial Thrust in Multistage Pumps—Origins and Solutions
(The American Society of Mechanical Engineers (ASME), 2002)In this paper, axial thrust problems of multistage pumps are presented. The entire investigation has been focused on the pump design concept having all impellers in series (facing in one ... -
A Comparison of Data-Reduction Methods for a Seven-Hole Probe
(The American Society of Mechanical Engineers (ASME), 2002)Two data-reduction methods were compared for the calibration of a seven-hole conical pressure probe in incompressible flow. The polynomial curve-fit method of Gallington and the direct-interpolation ... -
A Rational Method to Choose Optimum Design for Two-Dimensional Contractions
(The American Society of Mechanical Engineers (ASME), 2002)A review was carried out on the studies undertaken to obtain efficient shapes for the contraction designs. It is seen that before the advent of efficient digital computers around 1970, studies ... -
Hydrodynamic Design System for Pumps Based on 3-D CAD, CFD, and Inverse Design Method
(The American Society of Mechanical Engineers (ASME), 2002)A computer-aided design system has been developed for hydraulic parts of pumps including impellers, bowl diffusers, volutes, and vaned return channels. The key technologies include three-dimensional ... -
Erratum: “Speed Regulation Study for Bay D’Espoir Hydroelectric Generating Station” (Journal of Basic Engineering, 1968, 90, pp. 58–64)
(The American Society of Mechanical Engineers (ASME), 1968) -
Use of Surface Flow Visualization Methods in Centrifugal Pump Design
(The American Society of Mechanical Engineers (ASME), 2002)Surface flow patterns generated with oils or oil paint have been used in centrifugal pump design for many years. Here it is shown how modern image analysis methods allow quantitative predictions ... -
Predicting Mixing Volumes in Serial Transport in Pipelines
(The American Society of Mechanical Engineers (ASME), 2002)This paper presents a model for predicting the contaminated mixing volume arising in pipeline batch transfers without physical separators. The proposed technique represents an improvement over the ... -
Two-Phase Eulerian/Lagrangian Model for Nucleating Steam Flow
(The American Society of Mechanical Engineers (ASME), 2002)This paper describes an Eulerian/Lagrangian two-phase model for nucleating steam based on classical nucleation theory. The model provides an approach for including spontaneous homogeneous nucleation ... -
Shock Wave Propagation Into a Dust-Gas Suspension Inside a Double-Bend Conduit
(The American Society of Mechanical Engineers (ASME), 2002)Using conduits in which a transmitted shock wave experiences abrupt changes in its direction of propagation is an effective means for shock wave attenuation. An additional attenuation of the ... -
Discussion: “Similarity Solutions of Laminar, Incompressible Boundary-Layer Equations of Non-Newtonian Fluids” (Hansen, A. G., and Na, T. Y., 1968, ASME J. Basic Eng., 90, pp. 71–74)
(The American Society of Mechanical Engineers (ASME), 1968) -
Direct Simulation Monte Carlo Analysis of Rarefied Gas Flow Structures and Ventilation of Etching Gas in Magneto-Microwave Plasma Etching Reactors
(The American Society of Mechanical Engineers (ASME), 2002)Gas flows in plasma etching reactors for semiconductor fabrication became a chief consideration in designing second-generation reactors with higher etching rates. An axisymmetrical model based on ... -
The Relationship Between Frictional Resistance and Roughness for Surfaces Smoothed by Sanding
(The American Society of Mechanical Engineers (ASME), 2002)An experimental investigation has been carried out to document and relate the frictional resistance and roughness texture of painted surfaces smoothed by sanding. Hydrodynamic tests were carried ... -
The Distortion of a Jet by Coil Inserts
(The American Society of Mechanical Engineers (ASME), 2002)Results of experimental investigations of the effects of distortion caused by coil inserts on a turbulent jet are presented. The coils have different wire diameters with constant pitch spacing. ... -
Axial and Secondary Flow Study in a 90 Deg Bifurcation Under Pulsating Conditions Using PIV
(The American Society of Mechanical Engineers (ASME), 2002)Both axial and secondary flow were experimentally studied in a 90-degree bifurcation of square tubes, under pulsating conditions and equal branch flow rates. The examined peak Reynolds number ...