Journal of Fluids Engineering: Recent submissions
Now showing items 2001-2020 of 9024
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Large Floating Platform Technology: A Review
(The American Society of Mechanical Engineers (ASME), 1972)The purpose of this study was to review all material relevant to the design, construction, and operation of a large floating columnar platform made of ferroconcrete. Existing platforms, motion ... -
Influence of Inertial Particles on Turbulence Characteristics in Outer and Near Wall Flow as Revealed With High Resolution Particle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 2016)A fully developed turbulent particlegas flow in a rectangular horizontal channel 100 أ— 10 أ— 4000 mm3 is disclosed with high spatial resolution twodimensional (2D) particle image velocimetry (PIV). The objective ... -
Understanding Line Packing in Frictional Water Hammer
(The American Society of Mechanical Engineers (ASME), 2016)For valve closure transients in pipelines, friction attenuates the amplitude of water hammer wave fronts and causes line packing. The latter is a sustained head increase behind the wave front. Line packing can lead to ... -
A Numerical Simulation Algorithm of the Inviscid Dynamics of Axisymmetric Swirling Flows in a Pipe
(The American Society of Mechanical Engineers (ASME), 2016)Current simulations of swirling flows in pipes are limited to relatively low Reynolds number flows (Re < 6000); however, the characteristic Reynolds number is much higher (Re > 20,000) in most of engineering ... -
RANS Based Computational Fluid Dynamics Simulation of Fully Developed Turbulent Newtonian Flow in Concentric Annuli
(The American Society of Mechanical Engineers (ASME), 2016)A computational fluid dynamics (CFD) simulation is performed via ansys–CFX for a fully developed turbulent flow in concentric annuli with two radius ratios (R1/R2 = 0.4 and 0.5) at three Reynolds numbers (Re = 8900, ... -
Physical Explanation of the Hysteresis in Wells Turbines: A Critical Reconsideration
(The American Society of Mechanical Engineers (ASME), 2016)The hysteretic behavior of Wells turbines is a wellrecognized phenomenon. As it appears at nondimensional frequencies orders of magnitude lower than the ones studied in rapidly pitching airfoils and wings, the cause is ... -
Influence of Starling's Hypothesis and Joule Heating on Peristaltic Flow of an Electrically Conducting Casson Fluid in a Permeable Microvessel
(The American Society of Mechanical Engineers (ASME), 2016)Peristaltic transport of electrically conducting blood through a permeable microvessel is investigated by considering the Casson model in the presence of an external magnetic field. The reabsorption process across the ... -
Characteristics of Boundary Layer Transition and Reynolds Number Sensitivity of Three Dimensional Wings of Varying Complexity Operating in Ground Effect
(The American Society of Mechanical Engineers (ASME), 2016)The influence of Reynolds number on the aerodynamic characteristics of various wing geometries was investigated through windtunnel experimentation. The test models represented racing car front wings of varying complexity: ... -
Looping Dynamic Characteristics of a Pump Turbine in the S shaped Region During Runaway
(The American Society of Mechanical Engineers (ASME), 2016)During transients, hydroturbines may demonstrate some dynamic characteristics that differ from the corresponding static characteristics in steady operating conditions. To study the dynamic characteristics of a pumpturbine, ... -
Numerical Implementation of Detached Eddy Simulation on a Passenger Vehicle and Some Experimental Correlation
(The American Society of Mechanical Engineers (ASME), 2016)This study presents an implementation of delayed detachededdy simulation (DDES) on a fullscale passenger vehicle for three configurations with the use of commercial software harpoon (mesher) and ansys fluent (solver). The ... -
Impact of Blockage on the Hydrodynamic Performance of Oscillating Foils Hydrokinetic Turbines
(The American Society of Mechanical Engineers (ASME), 2016)This paper describes a study of the impact of confinement on the hydrodynamic performance of oscillatingfoils hydrokinetic turbines (OFHT). This work aims to contribute to the development of standards applying to marine ... -
Numerical Analysis of the Iridescent Ring Around Cavitation Erosion Pit on Stainless Steel Surface
(The American Society of Mechanical Engineers (ASME), 2016)In ultrasonic cavitation, iridescent rings always occur around erosion pits on steel surface. These colorful halos can reflect the experienced temperature of the steel surface, but the reason for their formation is ... -
Freeman Scholar Review: Passive and Active Skin Friction Drag Reduction in Turbulent Boundary Layers
(The American Society of Mechanical Engineers (ASME), 2016)A variety of skinfriction drag reduction (FDR) methods for turbulent boundary layer (TBL) flows are reviewed. Both passive and active methods of drag reduction are discussed, along with a review of the fundamental processes ... -
A Photographic Study of Spark-Induced Cavitation Bubble Collapse
(The American Society of Mechanical Engineers (ASME), 1972)The collapse of spark-induced cavitation bubbles in a flowing system was studied by means of high speed photography. The migration of cavitation bubbles toward a nearby solid boundary during ... -
Determination of the Pressure Field Using Three Dimensional, Volumetric Velocity Measurements
(The American Society of Mechanical Engineers (ASME), 2016)Methods to determine the pressure field of vortical flow from threedimensional (3D) volumetric velocity measurements (e.g., from a TSI V3VTM system) are discussed. The boundary pressure was determined where necessary using ... -
Empirical Correlation of the Primary Stability Variable of Liquid Jet and Liquid Sheet Under Acoustic Field
(The American Society of Mechanical Engineers (ASME), 2016)The investigation focuses on optimizing the length of windpipe that transmits acoustic energy from the compression driver to the cavity of twinfluid atomizers. To accomplish this objective, the primary variable of stability, ... -
Analysis of a Novel Y Y Micromixer for Mixing at a Wide Range of Reynolds Numbers
(The American Society of Mechanical Engineers (ASME), 2016)A novel passive micromixer, denoted as the YY mixer, based on splitandrecombine (SAR) principle is proposed and studied both experimentally and numerically over Reynolds numbers ranging from 1 to 100. Two species are ... -
Characterization of Flow Structures in a Diesel Injector for Different Needle Lifts and a Fluctuating Injection Pressure
(The American Society of Mechanical Engineers (ASME), 2016)This paper aims at analyzing the needle lift's influence on the internal flow of singlehole diesel injector to identify flow structures. A numerical ReynoldsAveraged Navier–Stokes (RANS) model of a singlehole diesel ... -
Turbulence Measurements in a Corner Wall Jet1
(The American Society of Mechanical Engineers (ASME), 2016)The corner wall jet is similar to the standard threedimensional wall jet with the exception that onehalf of the surface has been rotated counterclockwise by 90 deg. The corner wall jet is selected for study as the geometry ... -
The Flow and Decay Behavior of a Submerged Shear Thinning Jet With Yield Stress
(The American Society of Mechanical Engineers (ASME), 2016)The flow and decay characteristics of submerged jets of shearthinning fluids with yield stress are studied. Numerical solutions to the governing mass and momentum conservation equations, along with the Herschel–Bulkley ...