Journal of Fluids Engineering: Recent submissions
Now showing items 4501-4520 of 9024
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Added Mass of an Oscillating Hemisphere at Very-Low and Very-High Frequencies
(The American Society of Mechanical Engineers (ASME), 2004)A floating hemisphere under forced harmonic oscillation at very-low and very-high frequencies is considered. The problem is reduced to an elliptic one, that is, the Laplace operator in the ... -
Werlé–Legendre Separation in a Hydraulic Machine Draft Tube
(The American Society of Mechanical Engineers (ASME), 2004)The three-dimensional turbulent flow in a compact hydraulic machine elbow draft tube is numerically investigated for several operating conditions, covering an extended range around the best ... -
Effects of Elevated Free-Stream Turbulence on Actively Controlled Separation Bubble1
(The American Society of Mechanical Engineers (ASME), 2004)The effects of elevated free-stream turbulence (FST) on natural and periodically excited separation bubbles were examined experimentally at low Reynolds numbers. The bubble was formed at the ... -
An Evaluation of Impeller Blade Torque During an Impeller–Diffuser Interaction
(The American Society of Mechanical Engineers (ASME), 2004)An evaluation of the torque on an impeller blade interacting with a diffuser blade is presented. Comparisons of time averaged quantities are made between computed and measured results. The ... -
Transonic and Low Supersonic Flow Losses of Two Steam Turbine Blades at Large Incidences
(The American Society of Mechanical Engineers (ASME), 2004)A linear cascade experiment was conducted to investigate transonic and low supersonic flow losses of two nozzle blades for the steam turbines. In the experiment, flow incidences were changed ... -
Axisymmetric Stagnation-Point Flow and Heat Transfer of a Viscous Fluid on a Moving Cylinder With Time-Dependent Axial Velocity and Uniform Transpiration
(The American Society of Mechanical Engineers (ASME), 2004)The unsteady viscous flow and heat transfer in the vicinity of an axisymmetric stagnation point of an infinite moving cylinder with time-dependent axial velocity and with uniform normal transpiration ... -
Time Resolved Concentration Measurements in an Axial Flow Mixer
(The American Society of Mechanical Engineers (ASME), 2004)Experimental results are reported providing information on the downstream mixing evolution in axial pipe flow mixers where a scalar is introduced into the pipe via a coaxial injection tube. ... -
Turbulent Flow Hydrodynamic Experiments in Near-Compact Heat Exchanger Models With Aligned Tubes
(The American Society of Mechanical Engineers (ASME), 2004)Hydrodynamic experiments measuring longitudinal pressure-drop versus flow rate are conducted for turbulent flow of air (channel hydraulic diameter based Reynolds number range of 2300 to 6860) ... -
An Active Flap Deployment System for Blade–Disturbance Interaction Alleviation
(The American Society of Mechanical Engineers (ASME), 2004)A new, actively deployable trailing edge flap system is introduced and an experimental investigation is undertaken to determine its effects on the disturbances created during blade–disturbance ... -
Modeling of Entropy Production in Turbulent Flows
(The American Society of Mechanical Engineers (ASME), 2004)This article presents new modeling of turbulence correlations in the entropy transport equation for viscous, incompressible flows. An explicit entropy equation of state is developed for gases ... -
On the Grid Sensitivity of the Wall Boundary Condition of the k-ω Turbulence Model
(The American Society of Mechanical Engineers (ASME), 2004)This paper presents a study on the k-ω turbulence model with regard to the numerical implementation of the ω boundary condition at a solid wall, where ω tends to infinity. Three different ... -
Numerical Simulation of Incompressible Laminar Flow over Three-Dimensional Rectangular Cavities
(The American Society of Mechanical Engineers (ASME), 2004)This paper presents results of investigations of unsteady incompressible flow past three-dimensional cavities, where there is a complex interaction between the external flow and the recirculating ... -
Simulating Pulsatile Flows Through a Pipe Orifice by an Immersed-Boundary Method
(The American Society of Mechanical Engineers (ASME), 2004)A pulsatile laminar flow of a viscous, incompressible fluid through a pipe with a sudden constriction (an orifice) was simulated by an immersed-boundary method. A fluid is forced to move by ... -
Decay of Pressure and Energy Dissipation in Laminar Transient Flow
(The American Society of Mechanical Engineers (ASME), 2004)In the present paper, some peculiar characteristics of transient laminar flow are discussed. After presenting a review of the existing literature, attention is focused on transient energy dissipation ... -
Swirling Gas–Liquid Two-Phase Flow—Experiment and Modeling Part I: Swirling Flow Field
(The American Society of Mechanical Engineers (ASME), 2004)Compact cyclonic separators are based on swirling flow, whereby the phases are separated due to the centrifugal forces generated by the flow. This phenomenon is common in several compact ... -
Swirling Gas–Liquid Two-Phase Flow—Experiment and Modeling Part II: Turbulent Quantities and Core Stability
(The American Society of Mechanical Engineers (ASME), 2004)In Part I of this two-part paper on swirling gas–liquid two-phase flow, correlations have been developed for the continuous liquid-phase velocity field under swirling conditions, such as that ... -
Perspectives in Fluid Dynamics: A Collective Introduction to Current Research
(The American Society of Mechanical Engineers (ASME), 2003)Perspectives in Fluid Dynamics: A Collective Introduction to Current Research , edited by G. K. Batchelor, H. K. Moffatt, and M. G. Worster. Cambridge University Press, New York, 631 pp. -
Wake Dynamics of a Yawed Cylinder
(The American Society of Mechanical Engineers (ASME), 2003)A theoretical and computational study is reported of the effect of cylinder yaw angle on the vorticity and velocity field in the cylinder wake. Previous experimental studies for yawed cylinder ... -
Rotating Effect on Fluid Flow in Two Smooth Ducts Connected by a 180-Degree Bend
(The American Society of Mechanical Engineers (ASME), 2003)Laser Doppler velocimetry (LDV) measurements are presented of turbulent flow in a two-pass square-sectioned smooth duct simulating the coolant passages employed in gas turbine blades under rotating ... -
Direct Design of Ducts
(The American Society of Mechanical Engineers (ASME), 2003)This paper describes a method for calculating the shape of duct that leads to a prescribed pressure distribution on the duct walls. The proposed design method is computationally inexpensive, ...