Journal of Fluids Engineering: Recent submissions
Now showing items 3461-3480 of 9024
-
Slip-Flow Pressure Drop in Microchannels of General Cross Section
(The American Society of Mechanical Engineers (ASME), 2009)In the present study, a compact analytical model is developed to determine the pressure drop of fully-developed, incompressible, and constant properties slip-flow through arbitrary cross section ... -
Swimming and Flying in Nature—The Route Toward Applications: The Freeman Scholar Lecture
(The American Society of Mechanical Engineers (ASME), 2009)Evolution is a slow but sure process of perfecting design to give a life-form a natural advantage in a competitive environment. The resulting complexity and performance are so sophisticated ... -
Transient Simulation of the Aerodynamic Response of a Double-Deck Bus in Gusty Winds
(The American Society of Mechanical Engineers (ASME), 2009)The purpose of the research reported in this paper was to investigate the aerodynamic response of a double-deck bus in gusty winds using a detached-eddy simulation (DES). The bus was subjected ... -
Long-Wave Instabilities in a Non-Newtonian Film on a Nonuniformly Heated Inclined Plane
(The American Society of Mechanical Engineers (ASME), 2009)A thin liquid layer of a non-Newtonian film falling down an inclined plane that is subjected to nonuniform heating has been considered. The temperature of the inclined plane is assumed to be ... -
Effect of Geometrical Parameters on Vortex-Induced Vibration of a Splitter Plate
(The American Society of Mechanical Engineers (ASME), 2009)An experimental study on the effects of various geometrical parameters to the characteristics of vortex-induced vibration (VIV) of a splitter plate is presented. The dynamic response of the ... -
Free Surface Model Derived From the Analytical Solution of Stokes Flow in a Wedge
(The American Society of Mechanical Engineers (ASME), 2009)The formation of a thin liquid film onto a moving substrate is a commonly encountered industrial process, and one that is encountered in lubrication, oil extraction processes, and coating flows. ... -
Numerical and Experimental Investigations of Steam Condensation in LP Part of a Large Power Turbine
(The American Society of Mechanical Engineers (ASME), 2009)This paper presents the experimental investigations of steam flow with condensation in the blading system of the low-pressure (LP) part of a 360 MW turbine. To this end, special probes were ... -
The Effects of Inlet Geometry and Gas-Liquid Mixing on Two-Phase Flow in Microchannels
(The American Society of Mechanical Engineers (ASME), 2009)The effects of gas-liquid inlet geometry and mixing method on adiabatic gas-liquid two-phase flow in a microchannel of 100 μm diameter have been investigated using a T-junction inlet with the ... -
Pressure Drop in Rectangular Microchannels as Compared With Theory Based on Arbitrary Cross Section
(The American Society of Mechanical Engineers (ASME), 2009)Pressure driven liquid flow through rectangular cross-section microchannels is investigated experimentally. Polydimethylsiloxane microchannels are fabricated using soft lithography. Pressure drop data ... -
Numerical Modeling of Laminar Pulsating Flow in Porous Media
(The American Society of Mechanical Engineers (ASME), 2009)The laminar pulsating flow through porous media was numerically studied. Two-dimensional flows in systems composed of a number of unit cells of generic porous structures were simulated using a ... -
Aerodynamic Analysis of a Vehicle Tanker
(The American Society of Mechanical Engineers (ASME), 2009)The aim of this article is the presentation of a series of aerodynamic improvements for semitrailer tankers, which reduce the aerodynamic resistance of these vehicles, and, consequently, result ... -
Dynamic Model and Numerical Simulation for Synchronal Rotary Compressor
(The American Society of Mechanical Engineers (ASME), 2009)The synchronal rotary compressor (SRC) has been developed to resolve high friction and severe wear that usually occur in conventional rotary compressors due to the high relative velocity between ... -
Unsteady Wall Shear Stress in Transient Flow Using Electrochemical Method
(The American Society of Mechanical Engineers (ASME), 2009)Experimental measurements of the wall shear stress combined with those of the velocity profiles via the electrochemical technique and ultrasonic pulsed Doppler velocimetry are used to analyze the ... -
Considerations on a Mass-Based System Representation of a Pneumatic Cylinder
(The American Society of Mechanical Engineers (ASME), 2009)Pneumatic actuators can be advantageous over electromagnetic and hydraulic actuators in many servo motion applications. The difficulty in their practical use comes from the highly nonlinear dynamics ... -
Inviscid Flow Past Two Cylinders
(The American Society of Mechanical Engineers (ASME), 2009)A simple solution of the problem of inviscid flow past two circular cylinders is presented. The two cylinders may be of different diameters and located at any distance from each other. The ... -
Evaluation of the Dynamic Transfer Matrix of Cavitating Inducers by Means of a Simplified “Lumped-Parameter” Model
(The American Society of Mechanical Engineers (ASME), 2009)The paper will present an analytical model for the evaluation of the pressure and flow rate oscillations in a given axial inducer test facility. The proposed reduced order model is based on ... -
RANS Analyses of Turbofan Nozzles With Internal Wedge Deflectors for Noise Reduction
(The American Society of Mechanical Engineers (ASME), 2009)Computational fluid dynamics (CFD) was used to evaluate the flow field and thrust performance of a promising concept for reducing the noise at take-off of dual-stream turbofan nozzles. The ... -
Comparison of Turbulence Modeling Strategies for Indoor Flows
(The American Society of Mechanical Engineers (ASME), 2009)Turbulence modeling techniques are compared for the simulation of low speed indoor air flow in a simple room. The effect of inlet turbulence intensity on the flow field is investigated using ... -
Choking Phenomena in a Vortex Flow Passing a Laval Tube: An Analytical Treatment
(The American Society of Mechanical Engineers (ASME), 2009)The behavior of a vortex flow through a Laval nozzle was studied in connection with the purification of natural gas. By creating a vortex and passing it through a Laval nozzle, the gas will ... -
Pre-Stall Instability Distribution Over a Transonic Compressor Rotor
(The American Society of Mechanical Engineers (ASME), 2009)An investigation of the behavior of a transonic compressor rotor when operating close to stall is presented. The specific areas of interest are the behavior and location of low-frequency ...