Journal of Fluids Engineering: Recent submissions
Now showing items 3581-3600 of 9024
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Analysis of Turbulent Mixing Jets in a Large Scale Tank
(The American Society of Mechanical Engineers (ASME), 2008)Flow evolution models were developed to evaluate the performance of the new advanced design mixer pump for sludge mixing and removal operations with high-velocity liquid jets in one of the ... -
Experimental Investigation of the Submarine Crashback Maneuver
(The American Society of Mechanical Engineers (ASME), 2008)In order to decelerate a forward-moving submarine rapidly, often the propeller of the submarine is placed abruptly into reverse rotation, causing the propeller to generate a thrust force in the ... -
Suppression of Cavitation Instabilities in an Inducer by J Groove
(The American Society of Mechanical Engineers (ASME), 2008)The suppression of cavitation instabilities was attempted through the control of tip leakage vortex cavitation. The control was made by using shallow grooves, called J groove, on the casing ... -
Three-Dimensional Modeling and Geometrical Influence on the Hydraulic Performance of a Control Valve
(The American Society of Mechanical Engineers (ASME), 2008)The ability to understand and manage the performance of hydraulic control valves is important in many automatic and manual industrial processes. The use of computational fluid dynamics (CFD) ... -
Influence of Wall Inclination Angles on the Onset of Gas Entrainment During Single and Dual Discharges From a Reservoir
(The American Society of Mechanical Engineers (ASME), 2008)A theoretical analysis was carried out to predict the influences of wall inclination angles of large reservoirs on the onset of gas entrainment during single and dual discharges from a stratified ... -
Lumped Parameter Analysis of an Enclosed Incompressible Squeeze Film and a Central Gas Bubble
(The American Society of Mechanical Engineers (ASME), 2008)A lumped-parameter dynamic model for an enclosed incompressible squeeze film with a central gas bubble has been derived. A new approach was applied to derive closed-form expressions for the ... -
Frequency in Shedding/Discharging Cavitation Clouds Determined by Visualization of a Submerged Cavitating Jet
(The American Society of Mechanical Engineers (ASME), 2008)Visualization of a highly submerged cavitating water jet was done by high-speed camera photography in order to study and understand the jet structure and the behavior of cloud cavitation within ... -
Discrete Particle Study of Turbulence Coupling in a Confined Jet Gas-Liquid Separator
(The American Society of Mechanical Engineers (ASME), 2008)A 3D computational fluid dynamics investigation of particle-induced flow effects and liquid entrainment from an industrial-scale separator has been carried out using the Eulerian–Lagrangian two-way ... -
Sensitivity Analysis and Multiobjective Optimization for LES Numerical Parameters
(The American Society of Mechanical Engineers (ASME), 2008)Accuracy and reliability of large-eddy simulation data in a really complex industrial geometry are invesigated. An original methodology based on a response surface for LES data is introduced. ... -
Multiobjective Design Study of a Flapping Wing Power Generator
(The American Society of Mechanical Engineers (ASME), 2008)In conventional windmills, the high tip speed creates aerodynamic noise, and when they are used at very low Reynolds numbers, their performance deteriorates due to laminar separation. These are ... -
The Effect of Free Surface on the Vortex Shedding From Inclined Circular Cylinders
(The American Society of Mechanical Engineers (ASME), 2008)Spectral analysis of laser Doppler velocimetry measurements and flow visualization are employed to study the wake of inclined cylinders piercing a free surface. The results indicate that the ... -
Performance of Two-Equation Turbulence Models for Flat Plate Flows With Leading Edge Bubbles
(The American Society of Mechanical Engineers (ASME), 2008)This paper investigates the performance of the popular k-ω and SST turbulence models for the two-dimensional flow past the flat plate at shallow angles of incidence. Particular interest is paid ... -
Analysis of the Cavitating Draft Tube Vortex in a Francis Turbine Using Particle Image Velocimetry Measurements in Two-Phase Flow
(The American Society of Mechanical Engineers (ASME), 2008)Partial flow rate operation of hydroturbines with constant pitch blades causes complex unstable cavitating flow in the diffuser cone. A particle image velocimetry (PIV) system allows investigating ... -
Rotational Motion of Large Particulate Doublets in Poiseuille Flow in a Capillary
(The American Society of Mechanical Engineers (ASME), 2008)Doublets of 48-μm-diameter polystyrene latex particles are experimentally tracked in a Poiseuille flow in a capillary tube. The rotational motion of nine doublets is observed using video microscopy ... -
Cavitation Analogy to Gasdynamic Shocks: Model Conservativeness Effects on the Simulation of Transient Flows in High-Pressure Pipelines
(The American Society of Mechanical Engineers (ASME), 2008)A comparison between conservative and nonconservative models has been carried out for evaluating the influence of conservativeness on the prediction of transient flows in high-pressure pipelines. ... -
Cavitation Resonance
(The American Society of Mechanical Engineers (ASME), 2008)This article deals with a phenomenon named as cavitation resonance. Cavitation-associated pressure fluctuations in hydraulic systems affect their design, operation, and safety. Under certain conditions, ... -
Hydrodynamics and Sound Generation of Low Speed Planar Jet
(The American Society of Mechanical Engineers (ASME), 2008)Hydrodynamics and sound radiation of a low speed planar jet with Re=3000 have been studied by large eddy simulation combined with Lighthill’s acoustic analogy. Jets evolving from both well-developed ... -
Design of the Dense Gas Flexible Asymmetric Shock Tube
(The American Society of Mechanical Engineers (ASME), 2008)This paper presents the conceptual design of the flexible asymmetric shock tube (FAST) setup for the experimental verification of the existence of nonclassical rarefaction shock waves in molecularly ... -
A Differential Quadrature Solution of MHD Natural Convection in an Inclined Enclosure With a Partition
(The American Society of Mechanical Engineers (ASME), 2008)Magnetohydrodynamics natural convection in an inclined enclosure with a partition is studied numerically using a differential quadrature method. Governing equations for the fluid flow and heat ... -
Inhomogeneous Multifluid Model for Prediction of Nonequilibrium Phase Transition and Droplet Dynamics
(The American Society of Mechanical Engineers (ASME), 2008)A pressure based Eulerian multifluid model for application to phase transition with droplet dynamics in transonic high-speed flows is described. It is implemented using an element-based finite-volume ...