Journal of Fluids Engineering: Recent submissions
Now showing items 2041-2060 of 9024
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Planar Laser Induced Fluorescence Experiments and Modeling Study of Jets in Crossflow
(The American Society of Mechanical Engineers (ASME), 2016)Planar laserinduced fluorescence (PLIF) with acetone seeding was applied to measure the scalar fields of an axisymmetric freejet and an inclined jet in crossflow as applicable to film cooling. From the scalar fields, ... -
Leakage Loss Study of a Synchronal Rotary Multiphase Pump With a Full Range of Inlet Gas Volume Fractions
(The American Society of Mechanical Engineers (ASME), 2016)The working performance of the synchronal rotary multiphase pump (SRMP), alike other types of positivedisplacement multiphase pumps, is strongly affected by leakage loss. In this paper, the leakage loss in the SRMP with a ... -
Discussion: “A Solution of Reynolds Equation for a Full Finite Journal Bearing” (Ramachandra, S., 1961, ASME J. Basic Eng., 83, pp. 589–593)
(The American Society of Mechanical Engineers (ASME), 1961) -
Hydrodynamic Transition in Electrolysis
(The American Society of Mechanical Engineers (ASME), 1972)The gas removal process during electrolysis is studied with the aim of identifying hydrodynamic transitions, analogous to those which occur in boiling. The local peak in the electrolysis gas ... -
Large Eddy Simulation of Plasma Based Active Control on Imperfectly Expanded Jets
(The American Society of Mechanical Engineers (ASME), 2016)Jet flow control is important for mixing enhancement and noise mitigation. In previous efforts, we have used validated simulations to examine the effect of localized arc filament plasma actuators (LAFPA) on perfectly ... -
Two Pronged Jet Formation Caused by Droplet Impact on Anisotropic Superhydrophobic Surfaces
(The American Society of Mechanical Engineers (ASME), 2016)When a liquid droplet impacts a superhydrophobic surface with anisotropic surface patterning in the form of alternating ribs and cavities, the rebounding droplet may exhibit a unique twopronged jet emission. Droplet impact ... -
Challenging Mix Models on Transients to Self Similarity of Unstably Stratified Homogeneous Turbulence
(The American Society of Mechanical Engineers (ASME), 2016)The present work aims at expanding the set of buoyancydriven unstable reference flows—a critical ingredient in the development of turbulence models—by considering the recently introduced “Unstably Stratified Homogeneous ... -
A Scale Adaptive Turbulence Model Based on the k Equation and Recalibrated Reynolds Stress Constitutive Relation
(The American Society of Mechanical Engineers (ASME), 2016)An algebraic relationship between turbulent dissipation rate and von Karman length are used to dismiss the transport equation of turbulent dissipation rate in standard k−خµ (SKE) turbulence model. Meanwhile, a recalibrated ... -
Comparison of Flow Fields in a Centrifugal Pump Among Different Tracer Particles by Particle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 2016)This paper presents an experimental investigation of the flow fields in a centrifugal pump by particle image velocimetry (PIV) technique with two different tracer particles, all designed for the same operating point. In ... -
Modeling and Computer Simulation of Centrifugal CO2 Compressors at Supercritical Pressures
(The American Society of Mechanical Engineers (ASME), 2016)The use of supercritical carbon dioxide (SCCO2) as a working fluid in energy conversion systems has many benefits, including high efficiency, compact turbomachinery, and the abundance of CO2. A very important issue for ... -
Shear Cavitation in an Annular Jet Pump Under Recirculation Conditions
(The American Society of Mechanical Engineers (ASME), 2016)Recirculation accompanied by shear cavitation is a key flow feature in annular jet pumps (AJPs). In this study, a highspeed camera was used to capture the recirculation region and various types of cavity clouds. By monitoring ... -
Single Interface Richtmyer–Meshkov Turbulent Mixing at the Los Alamos Vertical Shock Tube
(The American Society of Mechanical Engineers (ASME), 2016)Mach number and initial conditions effects on Richtmyer–Meshkov (RM) mixing are studied by the vertical shock tube (VST) at Los Alamos National Laboratory (LANL). At the VST, a perturbed stable lighttoheavy (air–SF6, ... -
A Comparison of Three Approaches to Compute the Effective Reynolds Number of the Implicit Large Eddy Simulations
(The American Society of Mechanical Engineers (ASME), 2016)The implicit largeeddy simulation (ILES) has been utilized as an effective approach for calculating many complex flows at high Reynolds number flows. Richtmyer–Meshkov instability (RMI) induced flow can be viewed as a ... -
The Effect of a Dominant Initial Single Mode on the Kelvin–Helmholtz Instability Evolution: New Insights on Previous Experimental Results
(The American Society of Mechanical Engineers (ASME), 2016)This paper brings new insights on an experiment, measuring the Kelvin–Helmholtz (KH) instability evolution, performed on the OMEGA60 laser facility. Experimental radiographs show that the initial seed perturbations in ... -
Impact of Gurney Flaplike Strips on the Aerodynamic and Vortex Flow Characteristic of a Reverse Delta Wing
(The American Society of Mechanical Engineers (ASME), 2016)The impact of Gurney flaplike strips, of different geometric configurations and heights, on the aerodynamic characteristics and the tip vortices generated by a reverse delta wing (RDW) was investigated via forcebalance ... -
Closed Form Solution for Outflow Between Corotating Disks
(The American Society of Mechanical Engineers (ASME), 2016)Mathematical expressions are derived for flow velocities and pressure distributions for a laminar flow in the gap between two rotating concentric disks. Fluid enters the gap between disks at the center and diverges to the ... -
Natural Surface Oscillations of Rotating Fluid Along Radial Baffles of Rotor
(The American Society of Mechanical Engineers (ASME), 2016)This paper determines natural and resonant frequencies of radial–circular oscillations (waves) on the nonviscous, incompressible fluid partially and evenly filling similar compartments in a rotor that has the cylindrical ... -
A Momentum Integral Solution of a Three-Dimensional Turbulent Boundary Layer
(The American Society of Mechanical Engineers (ASME), 1972)The results of a momentum integral solution of the three-dimensional turbulent boundary layer on the confining wall of an impinging jet are presented. This geometry provides a boundary layer ... -
Bubble Motion in a Converging–Diverging Channel
(The American Society of Mechanical Engineers (ASME), 2016)The migration of a bubble inside a twodimensional converging–diverging channel is investigated numerically. A parametric study is conducted to investigate the effects of the Reynolds and Weber numbers and the amplitude ... -
Flow Similarity in the Rotor–Stator Interaction Affected Region in Prototype and Model Francis Pump Turbines in Generating Mode
(The American Society of Mechanical Engineers (ASME), 2016)Similarities of the flow in the rotor–stator interaction (RSI) affected region (stay vanes, guide vanes, and runner domain) in prototype and model Francis pumpturbines are analyzed using numerical simulations with special ...