Journal of Fluids Engineering: Recent submissions
Now showing items 1161-1180 of 9024
-
How Computational Grid Refinement in Three Dimensions Affects Computational Fluid Dynamics-Discrete Element Method Results for Psuedo-Two-Dimensional Fluidized Gas–Solid Beds
(The American Society of Mechanical Engineers (ASME), 2018)Computational fluid dynamics (CFD)-discrete element method (DEM) simulations are designed to model a pseudo-two-dimensional (2D) fluidized bed, in which bed thickness is minimal compared to height and length. Predicted bed ... -
The Parametric Modeling of Local Resistance and Pressure Drop in a Rotary Ball Valve
(The American Society of Mechanical Engineers (ASME), 2018)In this paper, a theoretical study of ball valves is carried out for investigating the local resistance and pressure drop of ball valves in operating process. An equivalent model of ball valves is proposed based on the ... -
Pressure Measurements in a Wire-Wrapped 61-Pin Hexagonal Fuel Bundle
(The American Society of Mechanical Engineers (ASME), 2018)To achieve longer-life liquid-metal fast reactor cores, designers are considering to increase the wall gap of the wire-wrapped hexagonal fuel bundles to account for volumetric void swelling and radiation creep. A new ... -
Investigation of Flow Dynamics Over Transitional-Type Microcavity
(The American Society of Mechanical Engineers (ASME), 2018)Flow over a transitional-type cavity in microchannels is studied using a microparticle image velocimetry system (μPIV) and commercially available computational fluid dynamics (CFD) software in laminar, transitional, and ... -
Investigations of Compressible Turbulent Flow in a High-Head Francis Turbine
(The American Society of Mechanical Engineers (ASME), 2018) -
Junction Losses for Arbitrary Flow Directions
(The American Society of Mechanical Engineers (ASME), 2018)Two hydraulic losses take effect at the junction point of three cylindrical conduits. These two quantities are considered to be functions of the three signed flow rates and two geometrical parameters: the cross-sectional ... -
A Synthetic Jet Issuing From a Bio-Inspired Actuator With an Oscillating Nozzle Lip
(The American Society of Mechanical Engineers (ASME), 2018)A novel variant of a synthetic jet actuator (SJA) has been designed, manufactured, and tested. The novelty consists in a bio-inspired nozzle whose oscillating lip is formed by a flexible diaphragm rim. The working fluid ... -
Dynamics of Liquid Sheet Breakup in Splash Plate Atomization
(The American Society of Mechanical Engineers (ASME), 2018)An experimental study was conducted to investigate the breakup of a liquid sheet produced by oblique impingement of a liquid jet on a plane solid surface. Experiments are carried out over a wide range of jet Weber number ... -
Special Section on the 15th International Workshop on the Physics of Compressible Turbulent Mixing
(The American Society of Mechanical Engineers (ASME), 2018) -
Influence of Centrifugal Forces on Oil Flow in Journal Bearing of Planetary Gear
(The American Society of Mechanical Engineers (ASME), 2018)Mathematical model of oil flow in fluid film bearing in field of centrifugal forces is developed. Centrifugal forces for planet wheel bearing sliding surfaces and oil gap are formulated. This model is based on modification ... -
The Role of Frequency and Phase Difference Between the Flow and the Actuation Signal of a Tangential Synthetic Jet on Dynamic Stall Flow Control
(The American Society of Mechanical Engineers (ASME), 2018)In this paper, we have studied the active flow control (AFC) of a pitching airfoil by means of a tangential synthetic jet actuator (SJA) using computational fluid dynamics. The airfoil was NACA0012 which pitched about its ... -
Active Flow Control of Dynamic Stall by Means of Continuous Jet Flow at Reynolds Number of 1 × 106
(The American Society of Mechanical Engineers (ASME), 2018)We have studied the influence of a tangential blowing jet in dynamic stall of a NACA0012 airfoil at Reynolds number of 1 × 106, for active flow control (AFC) purposes. The airfoil was oscillating between angles of attack ... -
Challenging Paradigms by Optimizing Combustible Dust Separator
(The American Society of Mechanical Engineers (ASME), 2018)A computational study was carried out to investigate the effects of internal geometry changes on the likelihood of solids buildup within, and the efficiency of, an industrial dust collector. Combustible solids held up in ... -
Detailed Description of Electro-Osmotic Effect on an Encroaching Fluid Column Inside a Narrow Channel
(The American Society of Mechanical Engineers (ASME), 2018)This paper uses eigenexpansion technique to describe electro-osmotic effect on unsteady intrusion of a viscous liquid driven by capillary action in a narrow channel. It shows how the dynamics can be manipulated by imposing ... -
High-Order Eulerian Simulations of Multimaterial Elastic–Plastic Flow
(The American Society of Mechanical Engineers (ASME), 2018)We develop a new high-order numerical method for continuum simulations of multimaterial phenomena in solids exhibiting elastic–plastic behavior using the diffuse interface numerical approximation. This numerical method ... -
A Reference Pelton Turbine—Three-Dimensional Flow Front Tracking Within a Rotating Pelton Bucket
(The American Society of Mechanical Engineers (ASME), 2018)A postprocessing method has been developed to enable the extraction of quantifiable data from images captured from within the rotating frame of reference of a Pelton turbine. The turbine tested was the reference Pelton ... -
Numerical Flow Prediction in Inlet Pipe of Vertical Inline Pump
(The American Society of Mechanical Engineers (ASME), 2018)For a pump, the inlet condition of flow determines the outlet conditions of fluid (i.e., energy). As a rule to minimize the losses at the entry of pump, the bends should be avoided as one of the methods. But for the case ... -
Hysteresis of the Coanda Effect
(The American Society of Mechanical Engineers (ASME), 2018)For scientist, the Coanda effect has been an object of interest for a long time. All the time, some new applications of it are found although it has been more than a hundred years since Henri Coanda got a patent that was ... -
The Application of Different Tripping Techniques to Determine the Characteristics of the Turbulent Boundary Layer Over a Flat Plate
(The American Society of Mechanical Engineers (ASME), 2018)In the present study, the optimal two-dimensional (2D) tripping technique for inducing a naturally fully developed turbulent boundary layer in wind tunnels has been investigated. Various tripping techniques were tested, ... -
Characterization of a Superheated Water Jet Released Into Water Using Proper Orthogonal Decomposition Method
(The American Society of Mechanical Engineers (ASME), 2018)The external characteristics of a superheated water jet released into water at ambient conditions are dominated by the vapor bubble formation, which results in an unsteady flow dynamics. This hinders the use of classical ...