Journal of Fluids Engineering: Recent submissions
Now showing items 4601-4620 of 9024
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An Expermentally Validated Model for Two-Phase Pressure Drop in the Intermittent Flow Regime for Noncircular Microchannels
(The American Society of Mechanical Engineers (ASME), 2003)This paper reports the development of an experimentally validated model for pressure drop during intermittent flow of condensing refrigerant R134a in horizontal, noncircular microchannels. Two-phase ... -
Influence of Three-Dimensional Roughness on Pressure-Driven Flow Through Microchannels
(The American Society of Mechanical Engineers (ASME), 2003)Surface roughness is present in most of the microfluidic devices due to the microfabrication techniques or particle adhesion. It is highly desirable to understand the roughness effect on microscale ... -
Modeling of the Onset of Gas Entrainment Through a Finite-Side Branch
(The American Society of Mechanical Engineers (ASME), 2003)A theoretical investigation has been conducted for the prediction of the critical height at the onset of gas entrainment during single discharge from a stratified, two-phase region through a ... -
Supersonic Through-Flow Fan Blade Cascade Studies
(The American Society of Mechanical Engineers (ASME), 2003)An investigation has been performed of the flow in a supersonic through-flow fan blade cascade. The blade shapes are those of the baseline supersonic through-flow fan (STF). Measurements were ... -
Unsteady Gust Response of Road Vehicles
(The American Society of Mechanical Engineers (ASME), 2003)A theoretical model based on an indicial method is proposed to simulate the unsteady response of a series of road vehicles, including high-speed trains, sports utility vehicles, sports cars, ... -
Resolving Turbulent Wakes
(The American Society of Mechanical Engineers (ASME), 2003)Resolving the turbulent statistics of bluff-body wakes is a challenging task. Frequently, the streamwise grid point spacing approaching the vortex exit boundary is sacrificed to gain near full ... -
Effects of Seal Geometry on Dynamic Impeller Fluid Forces and Moments
(The American Society of Mechanical Engineers (ASME), 2003)This paper reports an experimental investigation of the rotordynamic fluid force and moment on a centrifugal impeller with three types of wear-ring seals; i.e., a face seal and two types of ... -
Measurements of Resistance of Individual Square-Mesh Screens to Oscillating Flow at Low and Intermediate Reynolds Numbers
(The American Society of Mechanical Engineers (ASME), 2003)Measurements are reported of pressure losses across single screens subjected to low-frequency oscillating flow for 0.002≲Red≲400, where Red is Reynolds number based on wire diameter and peak ... -
Behavior of Radial Incompressible Flow in Pneumatic Dimensional Control Systems
(The American Society of Mechanical Engineers (ASME), 2003)The application of pneumatic metrology to control dimensional accuracy on machined parts is based on the measurement of gas flow resistance through a restricted section formed by a jet orifice ... -
Mixing and Entrainment Characteristics of Circular and Noncircular Confined Jets
(The American Society of Mechanical Engineers (ASME), 2003)The present work deals with the experimental investigation of entrainment characteristics of confined/semiconfined circular and noncircular jets. The jet fluid, after issuing out of a nozzle of ... -
Integral Solution for the Mean Flow Profiles of Turbulent Jets, Plumes, and Wakes
(The American Society of Mechanical Engineers (ASME), 2003)Integral methods are used to derive similarity solutions for several quantities of interest including the cross-stream velocity, Reynolds stress, the dominant turbulent kinetic energy production ... -
Experimental and Numerical Study of Unsteady Flow in a Diffuser Pump at Off-Design Conditions
(The American Society of Mechanical Engineers (ASME), 2003)An experimental and numerical study was developed for the unsteady phenomena at off-design conditions of a diffuser pump. Unsteady pressure measurements were made downstream of the impeller, and ... -
Volumetric Gas Flow Standard With Uncertainty of 0.02% to 0.05%
(The American Society of Mechanical Engineers (ASME), 2003)A new pressure, volume, temperature, and time (PVTt) primary gas flow standard for calibrating flowmeters has an expanded uncertainty (k=2) of between 0.02% and 0.05%. The standard diverts a ... -
The Inlet Flow Structure of a Centrifugal Compressor Stage and Its Influence on the Compressor Performance
(The American Society of Mechanical Engineers (ASME), 2003)The performance of centrifugal compressors can be seriously degraded by inlet flow distortions that result from an unsatisfactory inlet configuration. In this present work, the flow is numerically ... -
Numerical Analysis of Cavitating Flow of Liquid Helium in a Converging-Diverging Nozzle
(The American Society of Mechanical Engineers (ASME), 2003)The fundamental characteristics of the two-dimensional cavitating flow of liquid helium through a horizontal converging-diverging nozzle near the lambda point are numerically investigated to realize ... -
Fluid Flow Through Microscale Fractal-Like Branching Channel Networks
(The American Society of Mechanical Engineers (ASME), 2003)Flow through fractal-like branching networks is investigated using a three-dimensional computational fluid dynamics approach. Results are used to assess the validity of, and provide insight for ... -
A Cavity Wake Model Based on the Viscous/Inviscid Interaction Approach and Its Application to Nonsymmetric Cavity Flows in Inducers
(The American Society of Mechanical Engineers (ASME), 2003)A cavity wake model based on the flow interaction between the viscous wake behind the cavity and external inviscid cavity flow is proposed. The conditions of interaction between viscous and ... -
Capturing the Pinch-Off of Liquid Jets by the Level Set Method
(The American Society of Mechanical Engineers (ASME), 2003)Full three-dimensional dynamic simulations of forced liquid jets flowing into and pinching off in ambient of another liquid were performed by using the level set method for tracking the interface ... -
Mapping of the Lateral Flow Field in Typical Subchannels of a Support Grid With Vanes
(The American Society of Mechanical Engineers (ASME), 2003)Lateral flow fields in four subchannels of a model rod bundle fuel assembly are experimentally measured using particle image velocimetry. Vanes (split-vane pairs) are located on the downstream ... -
Modeling Free-Surface Flow in Part-Filled Rotating Vessels: Vertical and Horizontal Orientations
(The American Society of Mechanical Engineers (ASME), 2003)This paper reports on the numerical simulation of rotating flows with free surfaces, typically that arise in dough-kneading situations found within the food processing industry. Free-surface flow ...