Journal of Fluids Engineering: Recent submissions
Now showing items 3221-3240 of 9024
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Thermodynamic Effect on a Cavitating Inducer—Part I: Geometrical Similarity of Leading Edge Cavities and Cavitation Instabilities
(The American Society of Mechanical Engineers (ASME), 2010)The thermodynamic effect on a cavitating inducer is investigated from joint experiments in cold water and Refrigerant 114. The analysis is focused on leading edge cavitation and cavitation ... -
Thermodynamic Effect on a Cavitating Inducer—Part II: On-Board Measurements of Temperature Depression Within Leading Edge Cavities
(The American Society of Mechanical Engineers (ASME), 2010)Temperature depression within the leading edge cavities on a space inducer is measured in Refrigerant 114 using miniature thermocouples mounted on the rotating blades. Time-averaged values of ... -
The Effects of Fins on the Intermediate Wake of a Submarine Model
(The American Society of Mechanical Engineers (ASME), 2010)Results are presented on the behavior of the turbulent wake behind a submarine model for a range of Reynolds numbers based on the model length between 0.49×106 and 1.8×106, for test ... -
Flow Force Analysis of a Variable Force Solenoid Valve for Automatic Transmissions
(The American Society of Mechanical Engineers (ASME), 2010)Three-dimensional numerical simulations were carried out to investigate the flow dynamic behavior and pressure characteristics of a variable force solenoid (VFS) valve used in automatic transmissions. ... -
Fluid Flow Phenomena in Dusty Air
(The American Society of Mechanical Engineers (ASME), 1970)The purpose of this study was to obtain extensive experimental data on the effect of skin-friction drag by suspending solid particles in air. The investigation was divided into two parts: The ... -
A Novel 2D Incompressible Viscous Inverse Design Method for Internal Flows Using Flexible String Algorithm
(The American Society of Mechanical Engineers (ASME), 2010)In this investigation, the flexible string algorithm (FSA ), used before for inverse design of subsonic and supersonic ducts in compressible flows with and without normal shock, is developed ... -
Development Length Requirements for Fully Developed Laminar Pipe Flow of Yield Stress Fluids
(The American Society of Mechanical Engineers (ASME), 2010)In this technical brief, we report the results of a systematic numerical investigation of developing laminar pipe flow of yield stress fluids, obeying models of the Bingham-type. We are able ... -
Adjustment of Aerodynamic-Compensation Characteristics of a Pitot Tube by Rear-Body Shape Manipulation
(The American Society of Mechanical Engineers (ASME), 2010)In this paper we present a methodology for adjustment of subsonic compensation characteristics of an aerodynamic-compensation Pitot tube. This methodology is based on manipulation of a Pitot tube ... -
Parametric Design of a Waterjet Pump by Means of Inverse Design, CFD Calculations and Experimental Analyses
(The American Society of Mechanical Engineers (ASME), 2010)The present paper describes the parametric design of a mixed-flow water-jet pump. The pump impeller and diffuser geometries were parameterized by means of an inverse design method, while CFD ... -
Reliable and Accurate Prediction of Three-Dimensional Separation in Asymmetric Diffusers Using Large-Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2010)Large-eddy simulations (LES) and Reynolds-averaged Navier–Stokes (RANS) calculations of the flow in two asymmetric three-dimensional diffusers were performed. The setup was chosen to match an ... -
The Linear Stability Analysis of the Lamb–Oseen Vortex in a Finite-Length Pipe
(The American Society of Mechanical Engineers (ASME), 2010)This article extends the perturbation method introduced by (2008, “A Novel Method for Analyzing the Global Stability of Inviscid Columnar Swirling Flow in a Finite Pipe,” Phys. Fluids, 20(7), ... -
Performance of a Novel Rotating Gas-Liquid Separator
(The American Society of Mechanical Engineers (ASME), 2010)A novel gas separation process makes use of a rotating phase separator to separate micron-sized droplets from a gas stream. Based on an industrial scale design, a water/air separator is ... -
Asymptotic Generalizations of the Lockhart–Martinelli Method for Two Phase Flows
(The American Society of Mechanical Engineers (ASME), 2010)The (1949, “Proposed Correlation of Data for Isothermal Two Phase Flow, Two Component Flow in Pipes,” Chem. Eng. Prog., 45, pp. 39–48) method for predicting two phase flow pressure drop is ... -
Analysis of Unsteady Confined Viscous Flows With Variable Inflow Velocity and Oscillating Walls
(The American Society of Mechanical Engineers (ASME), 2010)The inflow velocities in various components of many engineering systems often display variations in time (fluctuations) during the operation cycle, which may substantially affect the flow-induced ... -
On Self-Similarity in the Inner Wall Layer of a Turbulent Channel Flow
(The American Society of Mechanical Engineers (ASME), 2010)We use proper orthogonal decomposition (POD) to estimate the flow in the near-wall region based on information from the outer buffer layer. Our goal is to assess how the flow structures in ... -
Application of Realizability and Shock Unsteadiness to k−ε Simulations of Under-Expanded Axisymmetric Supersonic Free Jets
(The American Society of Mechanical Engineers (ASME), 2010)An explicit cell-centered finite volume solver coupled to a k−ε turbulence model corrected for structural compressibility fails to satisfactorily predict the behavior of under-expanded supersonic ... -
Review of Hydraulic Roughness Scales in the Fully Rough Regime
(The American Society of Mechanical Engineers (ASME), 2010)A review of predictive methods used to determine the frictional drag on a rough surface is presented. These methods utilize a wide range of roughness scales, including roughness height, pitch, ... -
Eddy Heat Transfer by Secondary Görtler Instability
(The American Society of Mechanical Engineers (ASME), 2010)Experimental measurements of flow and heat transfer in a concave surface boundary layer in the presence of streamwise counter-rotating Görtler vortices show conclusively that local surface ... -
CFD Simulation of the Bubbling and Slugging Gas-Solid Fluidized Beds
(The American Society of Mechanical Engineers (ASME), 2010)A two-dimensional transient Eulerian model integrating the kinetic theory for emulsion phase is used to simulate the bubbling and slugging gas-solid fluidized beds, including the Geldart B and ... -
An Examination of Trapped Bubbles for Viscous Drag Reduction on Submerged Surfaces
(The American Society of Mechanical Engineers (ASME), 2010)Viscous drag reduction on a submerged surface can be obtained both in the limit of an unbroken gas film coating the solid and in the nanobubble or perhaps microbubble coating regime when an ...