Journal of Fluids Engineering: Recent submissions
Now showing items 4121-4140 of 9024
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Permeability and Form Coefficient Measurement of Porous Inserts With Non-Darcy Model Using Non-Plug Flow Experiments
(The American Society of Mechanical Engineers (ASME), 2006)Permeability (K) and form coefficient (C) are the characteristic hydraulic properties of any porous medium. They are determined simultaneously, for known fluid thermo-physical properties by using ... -
Robust Volume-Based Approach for the Turbulent Mixing Efficiency
(The American Society of Mechanical Engineers (ASME), 2006)This paper considers the mixture fraction which is often used to quantify the turbulent mixing efficiency in fluid engineering devices. We contrast a volume-based approach, where the mixture ... -
Semi-circular Rods Used to Control Turbulent Boundary Layer Separation at Cylindrical Surface
(The American Society of Mechanical Engineers (ASME), 2006)Flows in the boundary layer are retarded due to skin friction at the body surface. This, in the case of an adverse pressure gradient being present in the flow, leads to boundary layer ... -
Analysis of Spatiotemporal Variations and Flow Structures in a Periodically Driven Cavity
(The American Society of Mechanical Engineers (ASME), 2006)The time-dependent fluid flow in a square cavity was studied using model fluids of glycerol-water solution at different frequencies and amplitudes of motion of the top plate. The range of ... -
A Fluid-Jet Amplifier With Flat Saturation Characteristics
(The American Society of Mechanical Engineers (ASME), 1969)A proportional fluid-jet amplifier has been developed which exhibits flat saturation characteristics and also has reasonable gains, differential output pressures, and noise levels. The amplifier’s ... -
Galerkin Least-Squares Finite Element Approximations for Isochoric Flows of Viscoplastic Liquids
(The American Society of Mechanical Engineers (ASME), 2006)The flow of viscoplastic liquids is studied via a finite element stabilized method. Fluids, such as some food products, blood, mud, and polymer solutions, exhibit viscoplastic behavior. In order ... -
Numerical and Experimental Investigation on the Flow Induced Oscillations of a Single-Blade Pump Impeller
(The American Society of Mechanical Engineers (ASME), 2006)This contribution is addressed to the periodically unsteady flow forces of a single-blade sewage water pump, which affect the impeller and produce radial deflections of the pump shaft. The ... -
Phase Distribution in the Cap Bubble Regime in a Duct
(The American Society of Mechanical Engineers (ASME), 2006)The lateral phase distribution in the cap-bubbly regime was analyzed with a three-dimensional three-field two-fluid computational fluid dynamics (CFD) model based on the turbulence model for bubbly ... -
RANS Simulation of Ducted Marine Propulsor Flow Including Subvisual Cavitation and Acoustic Modeling
(The American Society of Mechanical Engineers (ASME), 2006)High-fidelity Reynolds-averaged Navier Stokes (RANS) simulations are presented for the ducted marine propulsor P5206, including verification and validation (V&V) using available experimental fluid ... -
A Kriging Approach for CFD/Wind-Tunnel Data Comparison
(The American Society of Mechanical Engineers (ASME), 2006)A Kriging-based method for the parametrization of the response surface spanned by uncertain parameters in computational fluid dynamics is proposed. A multiresolution approach in the sampling space ... -
Natural and Forced Conjugate Heat Transfer in Complex Geometries on Cartesian Adapted Grids
(The American Society of Mechanical Engineers (ASME), 2006)The Cartesian incompressible RANS solver with immersed boundaries, IBRANS , recently developed at Stanford, has been extended to include conjugate heat transfer modeling and used for the simulation ... -
Effect of Surfactant Additives on Centrifugal Pump Performance
(The American Society of Mechanical Engineers (ASME), 2006)Performance of a centrifugal pump when handling surfactant solutions was measured experimentally. It was clarified that the pump efficiency with surfactant solutions was higher than that with tap ... -
Bubble Effect on the Structures of Weakly Turbulent Couette Taylor Flow
(The American Society of Mechanical Engineers (ASME), 2006)In industrial applications, rotating flows have been recognized to enhance mixing and transfer properties. Moreover, bubbly flows are also used to improve transfers. Therefore, it is interesting ... -
Eulerian-Eulerian Modeling of Disperse Two-Phase Flow in a Gas-Liquid Cylindrical Cyclone
(The American Society of Mechanical Engineers (ASME), 2006)This work presents a three-dimensional computational fluid dynamics (CFD) study of a two-phase flow field in a gas-liquid cylindrical cyclone (GLCC) using CFX4.3 ™, a commercial code based on ... -
Development of a Tip-Leakage Flow Part 2: Comparison Between the Ducted and Un-ducted Rotor
(The American Society of Mechanical Engineers (ASME), 2006)The vortical flow in the tip region of a three-bladed rotor was examined using particle imaging velocimetry (PIV). The vortex forming at the tip of the un-ducted propeller was compared to the ... -
Experimental Investigation on the Onset of Gas Entrainment from a Stratified Two-Phase Region Through Multiple Branches Mounted on a Curved Surface
(The American Society of Mechanical Engineers (ASME), 2006)An experimental investigation has been carried out to simulate the onset of gas entrainment phenomenon from a stratified region through branches located on a semicircular wall configuration, in ... -
Modeling of Laminar Flows in Rough-Wall Microchannels
(The American Society of Mechanical Engineers (ASME), 2006)Numerical modeling and analytical approach were used to compute laminar flows in rough-wall microchannels. Both models considered the same arrangements of rectangular prism rough elements in ... -
The Boundary-Layer Velocity Distribution in Turbulent Swirling Pipe Flow
(The American Society of Mechanical Engineers (ASME), 1969)An experimental study was performed to determine the boundary-layer characteristics of an incompressible swirl flow produced by the insertion of a helically twisted tape into a pipe. The resulting ... -
Ejection Interaction of Two Adjacent Micropumps
(The American Society of Mechanical Engineers (ASME), 2006)This research intends to apply thermal bubble micropumps to motorcycle’s fuel atomizer system with ink and Stoddard solvent as the work liquids, and then utilize computational fluid dynamics to ... -
Blade Angle Effects on the Flow in a Tank Agitated by the Pitched-Blade Turbine
(The American Society of Mechanical Engineers (ASME), 2006)This paper presents a study of the influence of the blade angle on the flow in a tank stirred by the pitched-blade turbine. The flow induced by the pitched-blade turbine is usually described ...