Journal of Fluids Engineering: Recent submissions
Now showing items 2741-2760 of 9024
-
An Experimental Review on Microbubble Generation to be Used in Echo Particle Image Velocimetry Method to Determine the Pipe Flow Velocity
(The American Society of Mechanical Engineers (ASME), 2013)Microbubbles are broadly used as ultrasound contrast agents. In this paper we use a lowcost flow focusing microchannel fabrication method for preparing microbubble contrast agents by using some surface active agents and a ... -
Editorial for the Special Issue on Microfluidics
(The American Society of Mechanical Engineers (ASME), 2013)I am pleased to introduce this special issue of the Journal of Fluids Engineering—Transactions of the ASME on microfluidics. The term “microfluidics†is typically used to refer to the study of fluid dynamics in ... -
Uniform Flow Control for a Multipassage Microfluidic Sensor
(The American Society of Mechanical Engineers (ASME), 2013)Microfluidic sensors have been very effective for rapid, portable bioanalysis, such as in determining the pH of a sample. By simultaneously detecting multiple chemicals, the overall measurement performance can be greatly ... -
Induced Charge Electroosmosis Around Touching Metal Rods
(The American Society of Mechanical Engineers (ASME), 2013)Inducedcharge electroosmosis (ICEO) around multiple goldcoated stainless steel rods under different ac electric fields is analyzed using microparticle image velocimetry (microPIV) and numerical simulations. In the present ... -
Modeling the Electrophoretic Separation of Short Biological Molecules in Nanofluidic Devices
(The American Society of Mechanical Engineers (ASME), 2013)Via comparisons with rigidrod and wormlikechain Brownian dynamics (BD) simulations and the experimental results of Fu et al. (2006, “Molecular Sieving in Periodic FreeEnergy Landscapes Created by Patterned Nanofilter ... -
Up Scaled Microfluidic Fuel Cells With Porous Flow Through Electrodes
(The American Society of Mechanical Engineers (ASME), 2013)In this work, an experimental microfluidic fuel cell is presented with a novel upscaled porous electrode architecture that provides higher available surface area compared to conventional microfluidic fuel cells, providing ... -
Cavitation Inception and Head Loss Due to Liquid Flow Through Perforated Plates of Varying Thickness
(The American Society of Mechanical Engineers (ASME), 2013)This paper reports results of an experimental investigation of the loss coefficient and onset of cavitation caused by water flow through perforated plates of varying thickness and flow area to pipe area ratio at high speeds. ... -
Nonlinear Electrokinetic Transport Under Combined ac and dc Fields in Micro/Nanofluidic Interface Devices
(The American Society of Mechanical Engineers (ASME), 2013)The integration of micro/nanofluidic devices led to many interesting phenomena and one of the most important and complex phenomenon among them is concentration polarization. In this paper, we report new physical insights ... -
Investigation of the Flow Structures in Supersonic Free and Impinging Jet Flows
(The American Society of Mechanical Engineers (ASME), 2013)A numerical study of compressible jet flows is carried out using Reynolds averaged Navier–Stokes (RANS) turbulence models such as kة› and kد‰SST. An experimental investigation is performed concurrently using highspeed ... -
Loss Coefficients for Periodically Unsteady Flows in Conduit Components: Illustrated for Laminar Flow in a Circular Duct and a 90 Degree Bend
(The American Society of Mechanical Engineers (ASME), 2013)Losses in a flow through conduit components of a pipe system can be accounted for by head loss coefficients K. They can either be determined experimentally or from numerical solutions of the flow field. The physical ... -
Improvements to Common Data Reduction and Calibration Methods for Seven Hole Probes
(The American Society of Mechanical Engineers (ASME), 2013)The influence of calibration data sorting procedures and the order of polynomial curve fit used to calibrate seven hole pressure probes in subsonic, incompressible flow are discussed. It is shown that the inclusion of ... -
Maximum Drag Reduction Asymptote for Surfactant Based Fluids in Circular Coiled Tubing
(The American Society of Mechanical Engineers (ASME), 2013)Surfactants are superior to polymers in reducing drag and their advantages are very well established. As drag reducers, several factors, such as concentration, temperature, salinity, shear rate, etc., can affect their ... -
Deviations Due to Non Newtonian Influences Within a Miniature Viscous Disk Pump
(The American Society of Mechanical Engineers (ASME), 2013)A miniature viscous disk pump (VDP) is utilized to characterize and quantify nonNewtonian fluid deviations due to nonNewtonian influences relative to Newtonian flow behavior. Such deviations from Newtonian behavior are ... -
Airlift Pump With a Gradually Enlarged Segment in the Riser Tube
(The American Society of Mechanical Engineers (ASME), 2013)Airlift pump is a type of deep well pumps. Sometimes, it is used for removing water from mines or pumping slurry of sand and water or other solutions. The performance of airlift pump is affected by two sets of parameters; ... -
Scaling Interface Length Increase Rates in Richtmyer–Meshkov Instabilities
(The American Society of Mechanical Engineers (ASME), 2013)The interface area increase produced by largeamplitude wave refraction through an interface that separates fluids with different densities can have important physiochemical consequences, such as a fuel consumption rate ... -
The Effect of Droplet Solidification Upon Two-Phase Nozzle Flow
(The American Society of Mechanical Engineers (ASME), 1971)The handling of changes of phase in perturbation treatments of two-phase nozzle flow requires particular care. Droplet solidification, the phase change considered here, introduces two novel ... -
Numerical Prediction of Fluid Elastic Instability in Normal Triangular Tube Bundles With Multiple Flexible Circular Cylinders
(The American Society of Mechanical Engineers (ASME), 2013)Prediction of fluidelastic instability onset is a great matter of importance in designing crossflow heat exchangers from the perspective of vibration. In the present paper, the threshold of fluidelastic instability has ... -
Aeromechanical Control of High Speed Axial Compressor Stall and Engine Performance— Part I: Control Theoretic Models
(The American Society of Mechanical Engineers (ASME), 2013)General methodologies are proposed in this twopart paper that further phenomenological understanding of compressible stall inception and aeromechanical control of highspeed axial compressors and engine performance. Developed ... -
Numerical Investigation on Lock In Condition and Convective Heat Transfer From an Elastically Supported Cylinder in a Cross Flow
(The American Society of Mechanical Engineers (ASME), 2013)In this numerical study, flowinduced vibrations of a heated elastically supported cylinder in a laminar flow with Re = 200 and Pr = 0.7 are simulated using the moving overset grids method. This work is carried out ... -
On Entropy Production in Adiabatic Flow in Turbomachines
(The American Society of Mechanical Engineers (ASME), 1971)In three recent papers, Smith [1], Marsh [2], and Novak [3] have given general equations for the flow in turbomachines and methods for their solution. Each author has worked from momentum ...