Journal of Fluids Engineering: Recent submissions
Now showing items 4101-4120 of 9024
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Airfoil Performance at Low Reynolds Numbers in the Presence of Periodic Disturbances
(The American Society of Mechanical Engineers (ASME), 2006)The boundary-layer separation and wake structure of a NACA 0025 airfoil and the effect of external excitations in presence of structural vibrations on airfoil performance were studied experimentally. ... -
The Importance of the Mean Elevation in Predicting Skin Friction for Flow Over Closely Packed Surface Roughness
(The American Society of Mechanical Engineers (ASME), 2006)The discrete-element surface roughness model is used to provide insight into the importance of the mean elevation of surface roughness in predicting skin friction over rough surfaces. Comparison ... -
Miniature Single-Disk Viscous Pump (Single-DVP), Performance Characterization
(The American Society of Mechanical Engineers (ASME), 2006)The development and testing of a rotating single-disk viscous pump are described. This pump consists of a 10.16mm diameter spinning disk, and a pump chamber, which are separated by a small ... -
Numerical Simulation of the Particle Motion Characteristics in Boundary Layer of Gas-Solid Rotary Flow
(The American Society of Mechanical Engineers (ASME), 2006)The boundary-layer feature and the forces on the particle are analyzed in detail, and the motion parameters of the particle in the gas-solid rotary flow are divided into two parts according ... -
Turbulence Structures Downstream of a Localized Injection in a Fully Developed Channel Flow
(The American Society of Mechanical Engineers (ASME), 2006)The effects of localized blowing through a porous strip on a turbulent channel were studied experimentally. The measurements were conducted downstream of the porous strip for three blowing rates: ... -
Shape Recovery of a Levitated Aspherical Droplet From 2D Image Information
(The American Society of Mechanical Engineers (ASME), 2006)This paper presents an image processing technique in order to predict the shape of a levitated aspherical droplet. The technique is of great importance to containerless materials processing. A ... -
Numerical Analysis of Unsteady Viscous Flow Through a Weis-Fogh-Type Ship Propulsion Mechanism Using the Advanced Vortex Method
(The American Society of Mechanical Engineers (ASME), 2006)The velocity and pressure field of a ship’s Weis-Fogh-type propulsion mechanism are studied in this paper using an advanced vortex method. The wing (NACA0010 airfoil) and channel are approximated ... -
Sensitivity Analysis of Entrance Design Parameters of a Backward-Inclined Centrifugal Fan Using DOE Method and CFD Calculations
(The American Society of Mechanical Engineers (ASME), 2006)Centrifugal fans with an electric motor included in the hub are commonly used in HVAC (heating, ventilation, and air conditioning) systems. A design of experiments (DOE) has been performed to ... -
Forced Oscillations in a Mixed-Compression Inlet at Mach 3.5 for Pulse Detonation Engine Systems
(The American Society of Mechanical Engineers (ASME), 2006)The effects of oscillatory backpressure on the air induction system for pulse detonation engines were examined for a two-dimensional, mixed-compression configuration at a freestream Mach number ... -
Numerical Simulation and Mixing Study of Pseudoplastic Fluids in an Industrial Helical Static Mixer
(The American Society of Mechanical Engineers (ASME), 2006)Static mixers are increasingly being used to perform a variety of mixing tasks in industries, ranging from simple blending to complex multiphase reaction systems. Use of static mixers to process ... -
A Computational Study of the Flow Around an Isolated Wheel in Contact With the Ground
(The American Society of Mechanical Engineers (ASME), 2006)The flow around an isolated wheel in contact with the ground is computed by the Unsteady Reynolds-Averaged Navier-Stokes (URANS) method. Two cases are considered, a stationary wheel on a ... -
Unsteady Tip Leakage Vortex Cavitation Originating From the Tip Clearance of an Oscillating Hydrofoil
(The American Society of Mechanical Engineers (ASME), 2006)Tip leakage vortex cavitations originating from the tip clearance of an oscillating hydrofoil were observed experimentally. It was found that the delay between the unsteady and the steady-state ... -
Experimental Investigation of Unstably Stratified Buoyant Wakes
(The American Society of Mechanical Engineers (ASME), 2006)A water channel has been used as a statistically steady experiment to investigate the development of a buoyant plane wake. Parallel streams of hot and cold water are initially separated by a ... -
Characteristics of Small Vortices in a Turbulent Axisymmetric Jet
(The American Society of Mechanical Engineers (ASME), 2006)Characteristics of small vortices were studied in axisymmetric jets wherein the Kolmogorov scale was approached by progressively decreasing the Reynolds number while still maintaining turbulent ... -
Linear Stability Analysis of the Effects of Camber and Blade Thickness on Cavitation Instabilities in Inducers
(The American Society of Mechanical Engineers (ASME), 2006)It has been shown by experimental and numerical studies that various cavitation instabilities occur in inducers for rocket engines when the cavity length exceeds about 65% of the blade spacing. ... -
Steady and Unsteady Radial Forces for a Centrifugal Pump With Impeller to Tongue Gap Variation
(The American Society of Mechanical Engineers (ASME), 2006)Experimental and numerical studies are presented on the steady and unsteady radial forces produced in a single volute vaneless centrifugal pump. Experimentally, the unsteady pressure distributions ... -
Investigation of Microbubble Boundary Layer Using Particle Tracking Velocimetry
(The American Society of Mechanical Engineers (ASME), 2006)Particle tracking velocimetry has been used to measure the velocity fields of both continuous phase and dispersed microbubble phase, in a turbulent boundary layer, of a channel flow. Hydrogen ... -
Linear Dynamic Modeling of Flowing Fluid Lines
(The American Society of Mechanical Engineers (ASME), 1969)An “exact” classical solution is presented for the linearized frequency domain characterization of a barotropic fluid in a rigid circular tube. The axial velocity profile (and thus, the phase ... -
Discussion: “Three-Dimensional Vortex Method for Gas-Particle Two-Phase Compound Round Jet” (Uchiyama, T., and Fukase, A., 2005, ASME J. Fluids Eng., 127, pp. 32–40)
(The American Society of Mechanical Engineers (ASME), 2006)The paper by Uchiyama and Fukase (1) proposes a three-dimensional vortex method for particulate flows, which is applied to a circular jet of air laden with glass particles. The numerical method ... -
Pressure Drop of Fully Developed, Laminar Flow in Rough Microtubes
(The American Society of Mechanical Engineers (ASME), 2006)Advances in fabrication methods in microelectromechanical systems (MEMS) have generated significant interest in the area of microscale heat transfer and fluid flow. Microchannel heat exchangers can ...