Journal of Fluids Engineering: Recent submissions
Now showing items 5121-5140 of 9024
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Modeling Turbulent Wall Flows Subjected to Strong Pressure Variations
(The American Society of Mechanical Engineers (ASME), 1999)Mean pressure gradient affects the turbulence mainly through the modulation of the mean rate of strain. Modification of the turbulence structure feeds, in turn, back into the mean flow. ... -
Concentration Profiles in Shallow Turbulent Wakes
(The American Society of Mechanical Engineers (ASME), 1999)The present study deals with the noninvasive measurement of concentration in the intermediate shallow turbulent wake region using a video-imaging technique. The flow depths considered in the ... -
Transient Turbulent Gaseous Fuel Jets for Diesel Engines
(The American Society of Mechanical Engineers (ASME), 1999)Existing data on transient turbulent jet injection in to large chambers demonstrates self-similar behavior under a wide range of conditions including compressibility, thermal and species diffusion, ... -
Experimental Study of the Behavior of Confined Variable Density Jets in a Time Varying Crossflow
(The American Society of Mechanical Engineers (ASME), 1999)An experimental work and a physical analysis dedicated to the study of a low density jet subjected to a time varying crossflow with high acceleration/deceleration levels are presented in this ... -
A pdf Description of Turbulent Axisymmetric Free Jet Flow
(The American Society of Mechanical Engineers (ASME), 1999)This study presents the applications of a turbulence probability density function (pdf) equation to compute an axisymmetric turbulent free jet flow. In view of the difficulty of solving this ... -
The Effect of Biofilms on Turbulent Boundary Layers
(The American Society of Mechanical Engineers (ASME), 1999)Materials exposed in the marine environment, including those protected by antifouling paints, may rapidly become colonized by microfouling. This may affect frictional resistance and turbulent ... -
A Generic Centerline Velocity Decay Curve for Initially Turbulent Axisymmetric Jets
(The American Society of Mechanical Engineers (ASME), 1999)Recently the authors introduced a length scale which effectively collapsed the near field centerline development of velocity and mass fraction for variable density axisymmetric jets whose initial ... -
Dedication to Lloyd MacGregor Trefethen on the Occasion of His 80th Birthday
(The American Society of Mechanical Engineers (ASME), 1999) -
Multistage Simulation by an Adaptive Finite Element Approach Using Structured Grids
(The American Society of Mechanical Engineers (ASME), 1999)This paper presents the application of a three-dimensional Navier-Stokes finite element code (NS3D) in the context of turbomachinery rotor-stator multistage interaction. A mixing-plane approach is ... -
Numerical Study of Vortex Shedding From a Circular Cylinder in Linear Shear Flow
(The American Society of Mechanical Engineers (ASME), 1999)A three-dimensional numerical simulation of linearly sheared flow past a circular cylinder has been performed for a shear parameter β of 0.02 and a mean Reynolds number of 131.5. A cylinder ... -
Biologically-Inspired Bodies Under Surface Waves—Part 1: Load Measurements
(The American Society of Mechanical Engineers (ASME), 1999)Measurements have been carried out in a tow tank on cylindrical bodies submerged in proximity of traveling surface waves. Two bodies are considered: a reference plain cylinder and another ... -
Biologically-Inspired Bodies Under Surface Waves—Part 2: Theoretical Control of Maneuvering
(The American Society of Mechanical Engineers (ASME), 1999)The theoretical control of low-speed maneuvering of small underwater vehicles in the dive plane using dorsal and caudal fin-based control surfaces is considered. The two dorsal fins are long ... -
Laminar Flow of a Nonlinear Viscoplastic Fluid Through an Axisymmetric Sudden Expansion
(The American Society of Mechanical Engineers (ASME), 1999)A combined experimental and computational study was carried out to investigate the laminar flow of a nonlinear viscoplastic fluid through an axisymmetric sudden expansion. The yield-stress, power-law ... -
A Multiple Disk Probe for Inexpensive and Robust Velocimetry
(The American Society of Mechanical Engineers (ASME), 1999)A novel velocimeter consisting of multiple orthogonal disks fitted with pressure transducers has been developed. Dynamic pressure differences are measured between the center of one disk face and ... -
Experimental Analysis of Bubble Shapes During Condensation in Miscible and Immiscible Liquids
(The American Society of Mechanical Engineers (ASME), 1999)The initial volume of a condensing bubble released from an orifice and the shape oscillations of the bubble during the collapse process were studied. Results of a large number of original ... -
Singularity Detection in Experimental Data by Means of Wavelet Transform
(The American Society of Mechanical Engineers (ASME), 1999) -
Fluid Motion in Ultrasonic Flowmeter Cavities
(The American Society of Mechanical Engineers (ASME), 1999)The ultrasonic flow meter is a newcomer among flow meters for measuring large quantities of natural gas. It has notable advantages compared to traditional meters. The ultrasonic flow meter is ... -
A Macroscopic Turbulence Model for Flow in a Porous Medium
(The American Society of Mechanical Engineers (ASME), 1999)A complete set of macroscopic two-equation turbulence model equations has been established for analyzing turbulent flow and heat transfer within porous media. The volume-averaged transport equations ... -
High-Lift Optimization Design Using Neural Networks on a Multi-Element Airfoil
(The American Society of Mechanical Engineers (ASME), 1999)The high-lift performance of a multi-element airfoil was optimized by using neural-net predictions that were trained using a computational data set. The numerical data was generated using a ... -
Investigations of 3D Turbulent Flow Inside and Around a Water-Jet Intake Duct Under Different Operating Conditions
(The American Society of Mechanical Engineers (ASME), 1999)In this paper the flow field in the intake duct of a model water-jet unit is studied by using a commercial 3D CFD code. In order to model the intake duct/hull interaction, the computational ...