Journal of Fluids Engineering: Recent submissions
Now showing items 481-500 of 9024
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Liquid Droplet Impact Over Hydrophobic Mesh Surfaces and Assessment of Weber Number Dependent Characteristics
(The American Society of Mechanical Engineers (ASME), 2022)Impacting droplets and droplet ejection from hydrophobic mesh surfaces have interest in biomedicine, heat transfer engineering, and self-cleaning of surfaces. The rate and the size of newborn droplets can vary depending ... -
The Nature of “Searching” Vortices in Fluidic Logic Driven by a Switching Jet
(The American Society of Mechanical Engineers (ASME), 2022)Fluctuating jets energized by local excitations can perform operations similar to those of electric circuits but without electricity or moving parts. Some have termed these circuits “fluidic computers.” It is known that ... -
Maximum Wall Stress on a Smooth Flat Plate Under Planar Jet Impingement
(The American Society of Mechanical Engineers (ASME), 2022)This paper investigates the maximum wall shear stress value τmax and its location xmax as measured on a smooth flat plate impinged upon by a normal planar jet. τmax and xmax are found to be closely related to the stagnation ... -
Simplified Lumped Parameter Model for Oscillatory Flow in an Elastic Tube: A Hierarchical Approach
(The American Society of Mechanical Engineers (ASME), 2022)In this article, the significant characteristics of wave transmission and boundary layer influence are studied for an incompressible fluid flowing through a long elastic tube using lumped parameter model. An ameliorated ... -
Natural Convection and Transport of Background Contamination in the Borexino Neutrino Detector
(The American Society of Mechanical Engineers (ASME), 2022)The Borexino detector at Gran Sasso National Laboratories (INFN) has obtained extraordinary achievements for solar neutrino and geoneutrino physics during its lifetime. More recently, Borexino has provided the first ... -
A Direct Numerical Simulation Investigation of the One-Phase Flow in a Simplified Emulsification Device
(The American Society of Mechanical Engineers (ASME), 2022)More detailed investigation of the flow inside emulsification devices, e.g., High-pressure homogenizers (HPHs) helps the industry to broaden the fundamental understanding of the working principle of these machines which ... -
Numerical Investigation of Plasma Actuator Effects on Flow Control Over a Three-Dimensional Airfoil With a Sinusoidal Leading Edge
(The American Society of Mechanical Engineers (ASME), 2022)The impetus of the present bio-inspired work is to investigate the impact of simultaneously using wavy leading-edge (WLE) airfoils in combination with curved multidielectric barrier discharge (DBD) plasma actuators as ... -
Influence of Vibration–Dissociation Coupling and Number of Reactions in Hypersonic Nonequilibrium Flows
(The American Society of Mechanical Engineers (ASME), 2022)During the atmospheric cruising of a hypersonic vehicle, the thermal and chemical nonequilibrium effects characterize the flow field within the shock layer. Therefore an understanding of nonequilibrium flow is essential ... -
Aiding Airway Obstruction Diagnosis With Computational Fluid Dynamics and Convolutional Neural Network: A New Perspective and Numerical Case Study
(The American Society of Mechanical Engineers (ASME), 2022)It is challenging to locate small-airway obstructions induced by chronic obstructive pulmonary disease (COPD) directly from visualization using available medical imaging techniques. Accordingly, this study proposes an ... -
Ultra Low Temperature Microturbine for Magic Angle Spinning System
(The American Society of Mechanical Engineers (ASME), 2022)We investigate the fluid dynamics of a microturbine system that is applied in a device for chemical and biological analysis—a so-called magic angle spinning (MAS) nuclear magnetic resonance (NMR) probe. The present system ... -
Flow Characteristics of Gerotor Motors With Pin and Nonpin Designs
(The American Society of Mechanical Engineers (ASME), 2022)The geometric design of a gerotor motor has a significant impact on its function, performance, quality, reliability and cost. When designing a gerotor motor all these features must be considered. A gerotor motor can be ... -
Investigation of the Effect of the Stages Number, the Impeller Outlet Width, and the Impeller Outlet Angle on the Performance of an Industrial Electric Submersible Pump
(The American Society of Mechanical Engineers (ASME), 2022)This study has investigated the effect of the number of stages, the blade outlet spacing, and the blade outlet angle of a selected industrial submersible pump on the pump performance. The main steps in the study are outlined ... -
Numerical Investigation of Tip Clearance Effects on the Performance and Flow Pattern Within a Sewage Pump
(The American Society of Mechanical Engineers (ASME), 2022)Sewage pumps are one of the most popular types of fluid machinery in municipal, industrial, and environmental engineering and many other fields. The influence of tip clearance size on the pump performance and internal flow ... -
Design for High Efficiency of Low-Pressure Axial Fans With Small Hub-to-Tip Diameter Ratio by the Vortex Distribution Method
(The American Society of Mechanical Engineers (ASME), 2022)Axial fans with a small hub-to-tip diameter ratio (HTR) are widely used in industry, especially for cooling and ventilation purposes. The optimization of their aerodynamic performance is important, for which the vortex ... -
Pump Technology Interchange—As Embraced by Dr. S. Gopalakrishnan, Vice President, Technology of Flowserve Pump Division
(The American Society of Mechanical Engineers (ASME), 2022)Himself a major technical team player in a for-profit corporation, the stance adopted by Dr. S. Gopalakrishnan vis à vis the wider engineering community is examined and found to be instructive for technology leadership in ... -
Novel Operating Mode of a Fluidic Oscillator
(The American Society of Mechanical Engineers (ASME), 2022)Fluidic oscillators show promise for use in aerodynamic flow control applications, with many studies reporting oscillation frequencies in the 1–10 kHz range. Spyropoulos, “A Sonic Oscillator,” introduced a “sonic” oscillator ... -
The Effect of Surface Geometry of Solid Wall on the Collapse of a Cavitation Bubble
(The American Society of Mechanical Engineers (ASME), 2022)The objective of this paper is to reveal the influence of different surface geometric conditions on the dynamic behavior characteristics of a laser-induced bubble collapse. A high-speed camera system was used to record the ... -
Development and Validation of a Design Tool for an Improved Pitot-Tube Jet-Pump Allowing Continuous Fluid-Fluid Separation
(The American Society of Mechanical Engineers (ASME), 2022)A pitot-tube jet-pump (PTJ pump) has been considerably modified and extended in order to continuously separate and transport liquids of different densities. As a first application, an oil–water mixture is considered in ... -
Flow Patterns, Roller Characteristics, and Air Entrainment in Weak Hydraulic Jumps: Does Size Matter?
(The American Society of Mechanical Engineers (ASME), 2022)A hydraulic jump is a stationary transition from an upstream supercritical to a downstream subcritical flow. Hydraulic jumps with relatively low Froude numbers may be observed downstream of low-head hydraulic structures ... -
Measurements of Turbulent Transport in a Square Channel With One Ribbed Wall
(The American Society of Mechanical Engineers (ASME), 2022)The velocity field of the fully developed turbulent flow in a one-sided ribbed square channel (rib-height-to-channel-height ratio of k/h=0.0667 and rib-pitch-to-rib-height ratio of p/k=9) was measured at Reynolds numbers ...