Journal of Fluids Engineering: Recent submissions
Now showing items 4041-4060 of 9024
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Optimal Molar Gas Composition of Selected Gas Mixtures With Helium that Maximize Turbulent Free Convection Along Vertical Plates
(The American Society of Mechanical Engineers (ASME), 2006)With the goal of intensifying turbulent free convection from heated vertical plates to cold gases, five binary gas mixtures are examined in this technical note. Helium (He) is chosen as the ... -
On the Mechanism Responsible for Turbulent Drag Reduction by Dilute Addition of High Polymers: Theory, Experiments, Simulations, and Predictions
(The American Society of Mechanical Engineers (ASME), 2006)Turbulent drag reduction by dilute addition of high polymers is studied by considering local stretching of the molecular structure of a polymer by small-scale turbulent motions in the region ... -
Theoretical Analysis of the Onset of Gas Entrainment from a Stratified Two-Phase Region Through Two Side-Oriented Branches Mounted on a Vertical Wall
(The American Society of Mechanical Engineers (ASME), 2006)A theoretical analysis has been developed to predict the critical height and the location of the onset of gas entrainment during discharge from a stratified two-phase region through two ... -
A Thermal Lattice Boltzmann Two-Phase Flow Model and Its Application to Heat Transfer Problems—Part 1. Theoretical Foundation
(The American Society of Mechanical Engineers (ASME), 2006)A new and generalized lattice Boltzmann model for simulating thermal two-phase flow is described. In this model, the single component multi-phase lattice Boltzmann model proposed by Shan and ... -
Swirling Flow of a Viscoelastic Fluid With Free Surface—Part II: Numerical Analysis With Extended Marker-and-Cell Method
(The American Society of Mechanical Engineers (ASME), 2006)In Part I [, 2004, 2004 ASME Int. Mech. Eng. Conference ], we presented the experimental results for swirling flows of water and cetyltrimethyl ammonium chloride (CTAC) surfactant solution in ... -
Swirling Flow of a Viscoelastic Fluid in a Cylindrical Casing
(The American Society of Mechanical Engineers (ASME), 2006)The swirling flow of a viscoelastic fluid in a cylindrical casing is investigated experimentally, using aqueous solutions of 0.05–1.0wt.% polyacrylamide as the working fluid. The velocity measurements ... -
Formation of Taylor Vortex Flow of Polymer Solutions
(The American Society of Mechanical Engineers (ASME), 2006)Laser-induced fluorescence (LIF) was applied for the flow visualization of the formation of a Taylor vortex, which occurred in the gap between two coaxial cylinders. The test fluids were tap ... -
Vortex Motion in a Swirling Flow of Surfactant Solution with Drag Reduction
(The American Society of Mechanical Engineers (ASME), 2006)Surfactants are well known as additives which induce drag reduction in the straight (nonswirling) pipe flow. However, in industrial applications of the drag-reducing effect, many flow fields ... -
Three Regimes of Non-Newtonian Rimming Flow
(The American Society of Mechanical Engineers (ASME), 2006)The present study is related to the rimming flow of non-Newtonian fluid on the inner surface of a horizontal rotating cylinder. Using a scale analysis, the main characteristic scales and ... -
A Limited Comparison of the Mechanical Strength of Austenitic Steel in 1200 F Sodium, Air, and Helium
(The American Society of Mechanical Engineers (ASME), 1969)The mechanical properties of 316 stainless steel were measured at room temperature and at 1200 F during exposure to environments of air, helium and “clean” sodium. The test results were: Test: ... -
Experimental Study on the Helical Flow in a Concentric Annulus With Rotating Inner Cylinder
(The American Society of Mechanical Engineers (ASME), 2006)This experimental study concerns the characteristics of vortex flow in a concentric annulus with a diameter ratio of 0.52, whose outer cylinder is stationary and inner one is rotating. Pressure ... -
Study on Hydrodynamic Torque of a Butterfly Valve
(The American Society of Mechanical Engineers (ASME), 2006)Since knowledge on hydrodynamic torque of a butterfly valve is very important for butterfly valve design, its hydrodynamic torque is investigated theoretically. For this, a recently developed ... -
Inherently Linear Annular-Duct-Type Laminar Flowmeter
(The American Society of Mechanical Engineers (ASME), 2006)A concept of the laminar flowmeter is based on the well-known relationship between laminar flow rate of fluid Q through a measuring element of length L and pressure drop ΔP. Usually the ... -
Erratum: “Two-phase Flow in Jet Pumps for Different Liquids” [Journal of Fluids Engineering, 2005, 127(5), pp. 1038–1042]
(The American Society of Mechanical Engineers (ASME), 2006)The name of the third author was omitted from the paper: Mohsen Abou-Ellail Ph.D. Mechanical Power Engineering, Cairo University, Cairo, Egypt -
Erratum: “Numerical Simulation of Two-Phase Flow in Injection Nozzles: Interaction of Cavitation and External Jet Formation” [Journal of Fluids Engineering, 2003, 125(6), pp. 963–969]
(The American Society of Mechanical Engineers (ASME), 2006)The sign “−” at the right side of Eq. (16) is missing. It should read “=−”. -
Magnetorheological Jet (MR JetTM) Finishing Technology
(The American Society of Mechanical Engineers (ASME), 2006)Conformal (or freeform) and steep concave optics are important classes of optics that are difficult to finish using conventional techniques due to mechanical interferences and steep local slopes. ... -
Surface Micromachined Dielectrophoretic Gates for the Front-End Device of a Biodetection System
(The American Society of Mechanical Engineers (ASME), 2006)We present a novel separation device for the front-end of a biodetection system to discriminate between biological and non-biological analytes captured in air samples. By combining AC dielectrophoresis ... -
Plane Poiseuille Flow of Two Compatible Polymers: Influence of the Interphase on the Flow Stability
(The American Society of Mechanical Engineers (ASME), 2006)This paper deals with coextrusion flows of two compatible polymers which are known to be generally more stable than the same flows of incompatible systems. We show that the weak response to ... -
A Numerical Study of Dean Instability in Non-Newtonian Fluids
(The American Society of Mechanical Engineers (ASME), 2006)We present a numerical study of Dean instability for non-Newtonian fluids in a laminar 180deg curved-channel flow of rectangular cross section. A methodology based on the Papanastasiou model (, ... -
Effect of Axial Compression on Low-Cycle Fatigue of Metals in Torsion
(The American Society of Mechanical Engineers (ASME), 1969)Thin-walled tubular specimens of aluminum alloy 2024-T351, stainless steel 347, and beryllium copper 25 under static axial compressive stresses were tested in low-cycle fatigue in torsion. The ...