Journal of Fluids Engineering: Recent submissions
Now showing items 3241-3260 of 9024
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Buoyancy Effects on Thermal Boundary Layer Over a Vertical Plate With a Convective Surface Boundary Condition
(The American Society of Mechanical Engineers (ASME), 2010)This study aims to analyze the effects of thermal buoyancy on the laminar boundary layer about a vertical plate in a uniform stream of fluid under a convective surface boundary condition. ... -
Implicit LES Predictions of the Cavitating Flow on a Propeller
(The American Society of Mechanical Engineers (ASME), 2010)We describe an approach to simulate dynamic cavitation behavior based on large eddy simulation of the governing flow, using an implicit approach for the subgrid terms together with a wall model ... -
On the Suppression of Vortex Shedding From Circular Cylinders Using Detached Short Splitter-Plates
(The American Society of Mechanical Engineers (ASME), 2010)Flow over a circular cylinder with detached short splitter-plates is numerically simulated in order to assess the suppression of periodic vortex shedding. A finite-volume solver based on the ... -
Jet Pump Cavitation
(The American Society of Mechanical Engineers (ASME), 1970)Mixing-throat cavitation in a liquid jet pump results from high jet velocities, low suction (NPSH) pressure, or low discharge pressure. Incipient cavitation at the jet boundary has no effect ... -
Shape Optimization of Symmetric Cylinder Shape on Buoyancy Using Fourier Series Approximation
(The American Society of Mechanical Engineers (ASME), 2010)The hydrophobicity of water striders and fisher spiders shows the geometrical property of microsetae with elaborate nanogrooves. Studying such geometrical morphology naturally leads to the question: ... -
Shape Optimization of a Multi-Element Foil Using an Evolutionary Algorithm
(The American Society of Mechanical Engineers (ASME), 2010)A movable flap with a NACA foil cross section serves as a common control surface for underwater marine vehicles. To augment the functionality of the control surface, a tab assisted control ... -
Separation of a Two-Phase Slug Flow in Branched 90 deg Elbows
(The American Society of Mechanical Engineers (ASME), 2010)Novel experimental data for phase separation of air-water mixtures in horizontal 90 deg branched elbows are presented in this work. The branched elbows were formed by attaching a pipe to a ... -
Performance Improvement of Weis-Fogh Type Ship’s Propulsion Mechanism Using a Wing Restrained by an Elastic Spring
(The American Society of Mechanical Engineers (ASME), 2010)This study was conducted in an attempt to improve the hydrodynamic performance of a Weis-Fogh type ship propulsion mechanism by installing a spring to the wing so that the opening angle of ... -
Microbubble Drag Reduction Downstream of Ventilated Partial Cavity
(The American Society of Mechanical Engineers (ASME), 2010)The effect of air flux from ventilated partial cavities on drag of bodies was studied. An integral equation method for estimation of air bubble effects on drag was employed and validated with ... -
A Serendipitous Application of Supercavitation Theory to the Water-Running Basilisk Lizard
(The American Society of Mechanical Engineers (ASME), 2010)The classic study of the water entry of a body has applications ranging from hydroballistics to behavior of basilisk lizards. The availability of Russian supercavitation theory in recent years ... -
Methods of Predicting the Tip Clearance Effects in Axial Flow Turbomachinery
(The American Society of Mechanical Engineers (ASME), 1970)Using the author’s earlier flow model for the tip clearance flow, an expression is derived for the decrease in stage efficiency due to tip clearance. The analysis which includes all the ... -
On the Derivation of Pressure Field Distribution at the Entrance of a Rectangular Capillary
(The American Society of Mechanical Engineers (ASME), 2010)In capillary flow, integral momentum approach is used to derive the governing equation, which requires an expression for the pressure field at the inlet of the capillary. Generally, the pressure ... -
Combined Effect of Surface Roughness and Heterogeneity of Wall Potential on Electroosmosis in Microfluidic/Nanofuidic Channels
(The American Society of Mechanical Engineers (ASME), 2010)The motivation of the present study is to generate vortical flow by introducing channel wall roughness in the form of a wall mounted block that has a step-jump in ζ-potential on the upper ... -
Mitigation of Damage to Solid Surfaces From the Collapse of Cavitation Bubble Clouds
(The American Society of Mechanical Engineers (ASME), 2010)The collapse of transient bubble clouds near a solid surface was investigated to test a scheme for mitigation of cavitation-induced damage. The target was a porous ceramic disk through which ... -
Experimental Analysis of Microchannel Entrance Length Characteristics Using Microparticle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 2010)The study of the entrance region of microchannels and microdevices is limited, yet important, since the effect on the flow field and heat transfer mechanisms is significant. An experimental ... -
Cavitation Suppression and Stress Effects in High-Speed Flows of Water With Dilute Macromolecule Additives
(The American Society of Mechanical Engineers (ASME), 1970)Experiments were carried out to study the effect of dilute aqueous polymer solutions on flow-generated cavitation inception. The cavitation inception on 1/4 and 1/2 -in-dia models with a ... -
Flow and Dipole Source Evaluation of a Generic SUV
(The American Society of Mechanical Engineers (ASME), 2010)Accurately predicting both average flow quantities and acoustic sources at the front window of today’s ground vehicles are still a considerable challenge to automotive companies worldwide. One ... -
Fluid Force Moment on the Backshroud of a Francis Turbine Runner in Precession Motion
(The American Society of Mechanical Engineers (ASME), 2010)The fundamental characteristics of rotordynamic fluid force moment on the backshroud of a Francis turbine runner in precession motion were studied using model tests and computations based on a ... -
Experimental Study of Turbulence Transport in a Dilute Surfactant Solution Flow Investigated by PIV
(The American Society of Mechanical Engineers (ASME), 2010)Drag-reducing flow of dilute surfactant solution in the two-dimensional channel is investigated experimentally by using particle image velocimetry (PIV) system. Five hundred instantaneous velocity ... -
Flows and Their Stability in Rotating Cylinders With a Porous Lining
(The American Society of Mechanical Engineers (ASME), 2010)Flow fields in an annulus between two rotating cylinders with a porous lining have been numerically examined in this study. While the outer cylinder is stationary, the inner cylinder is rotating ...