Journal of Fluids Engineering: Recent submissions
Now showing items 241-260 of 9024
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Hydrodynamic Design and Pulsation Evolution in an Axial-Flow Pump Based on Control Mechanism of Flow-Induced Excitation
(The American Society of Mechanical Engineers (ASME), 2024)The physical mechanism, evolution process, and control method on pulsation caused by flow-induced excitation vortex in an axial flow pump are elaborated by numerical calculation and experiment. The mechanism formulation ... -
Effect of Tip Gap Size on the Tip Flow Structure and Turbulence Generation in a Low Reynolds Number Compressor Cascade
(The American Society of Mechanical Engineers (ASME), 2024)Efficient and compact axial compressors are currently undergoing rapid development for use in microcooling systems and small-scale vehicles. Limited experimental work concentrates on the inner flow field of the compressors ... -
Switching Events of Wakes Shed From Two Short Flapping Side-by-Side Cylinders
(The American Society of Mechanical Engineers (ASME), 2024)The wakes shed alternatively from two long stationary side-by-side cylinders have long been an issue in many engineering applications, such as wind energy harvesting schemes that utilize vortex-induced vibrations (VIVs). ... -
Impact of Fluid Rheology and Density Ratio in Droplet Collision: A Numerical Investigation
(The American Society of Mechanical Engineers (ASME), 2024)This research delves into the intricate interplay of fluid rheology, characterized by the power-law model, and density ratio ρr=ρl/ρg in the context of droplet collision dynamics. The power-law index (n) is systematically ... -
Computational Analysis of Flow Around Two Wall-Mounted Trapezoidal Bluff Bodies Arranged in Tandem Position
(The American Society of Mechanical Engineers (ASME), 2024)Flow around two identical wall-mounted trapezoidal bluff bodies, arranged in tandem, is numerically investigated at a Reynolds number of 750,000. The investigation employs Reynolds-averaged Navier–Stokes (RANS) equations ... -
Wake Dynamics of Complex Turning Vanes Using Time-Resolved Particle Image Velocimetry Measurements
(The American Society of Mechanical Engineers (ASME), 2024)The use of turning vanes spans multiple engineering disciplines such as aerospace, ocean, and biomedical to effectively turn an otherwise uniform flowfield and achieve desired downstream flow angles. The presented work ... -
Flow Through a Passage With Scaled Additive Manufacturing Roughness Representing Different Printing Orientations
(The American Society of Mechanical Engineers (ASME), 2024)Components with internal passages created using some laser-sintering based, additive manufacturing (AM) systems can exhibit anisotropic surface features with an appearance of three-dimensional roughness superimposed on ... -
Experimental Study of the Cavitating Flow on an Independently Heated Venturi Nozzle
(The American Society of Mechanical Engineers (ASME), 2024)Despite the observation of change in the cavitation regime on a heated surface, the specific section of the wall surface that plays a more dominant role in this transition phenomenon remains unknown. This study experimentally ... -
Effects of Reynolds Number on the Wake Characteristics of a Notchback Ahmed Body
(The American Society of Mechanical Engineers (ASME), 2024)This paper investigates the effects of Reynolds number on the wake characteristics of a notchback Ahmed body with effective backlight angle, βe=17.8 deg. The Reynolds number based on the body height was varied from 5×103 ... -
Closure to “Discussion of ‘Some Exact Analytical Solutions for Two-Dimensional Flow of an Incompressible Second Grade Fluid’” (2015, ASME J. Fluids Eng., 137(10), p. 101206)
(The American Society of Mechanical Engineers (ASME), 2024)This corrigendum is regarding the discussion and suggestions by Professor Dr. Asterios Pantokratoras on the paper “Some Exact Analytical Solutions for Two-Dimensional Flow of an Incompressible Second Grade Fluid (2015, ... -
Large Eddy Simulation of Separated Flows on Unconventionally Coarse Grids1
(The American Society of Mechanical Engineers (ASME), 2024)We examine and benchmark the emerging idea of applying the large eddy simulation (LES) formalism to unconventionally coarse grids where Reynolds-averaged Navier–Stokes (RANS) would be considered more appropriate at first ... -
Experimental and Numerical Evaluations of Dynamic Transfer Matrix for a Three-Dimensional Centrifugal Impeller Based on Unsteady Energy Conservation
(The American Society of Mechanical Engineers (ASME), 2024)Under unsteady operating conditions in turbomachinery, the performance is unable to respond rapidly enough to follow characteristic curves for the steady condition. To design a reliable turbomachinery under unexpected ... -
Analysis of Electroosmotically Modulated Peristaltic Transport of Third Grade Fluid in a Microtube Considering Slip-Dependent Zeta Potential
(The American Society of Mechanical Engineers (ASME), 2024)The present study investigates electro-osmotically modulated peristaltic transport of third-grade fluid through a microtube taking into consideration the intricate coupling of zeta potential and hydrodynamic slippage. The ... -
Investigation of the Influence of Flow Pattern on the Internal Corrosion in Horizontal–Vertical Downward Pipe With Oil–Water Flow
(The American Society of Mechanical Engineers (ASME), 2024)In the petroleum and petrochemical industries, oil–water flow is widespread inside the pipes. The existence of water often results in internal corrosion in the horizontal–vertical downward pipe when water contacts the pipe ... -
Validation of a RANS Turbulence Model for a S833 Wind Turbine Airfoil With a Trailing Edge Flap Using Oil Visualization and Pressure Taps
(The American Society of Mechanical Engineers (ASME), 2024)The aerodynamics of a small wind turbine blade was captured using a γ–Reθ k–ω shear stress transport transitional turbulence model tuned with production limiter coefficients at a Reynolds number of 1.70×105. The computational ... -
Experimental Investigation of Part Load Vortex Rope Mitigation With Rod Protrusion in an Axial Turbine
(The American Society of Mechanical Engineers (ASME), 2024)The present paper investigates the rotating vortex rope (RVR) mitigation on an axial turbine model by the radial protrusion of four cylindrical rods into the draft tube. RVR mitigation is of particular interest due to the ... -
Actuation Modeling of a Microfluidically Reconfigurable Radiofrequency Device
(The American Society of Mechanical Engineers (ASME), 2024)Microfluidic-based techniques have been shown to address limitations of reconfigurable radio frequency (RF) antennas and filters in efficiency, power handling capability, cost, and frequency tuning. However, the current ... -
A Study of Shock-Induced Transient Jets: The Impact of Exit Conditions on Mach Disk and Vortex Ring
(The American Society of Mechanical Engineers (ASME), 2024)We investigate the effect of exit pressure history on the flow characteristics of underexpanded transient jets. Using both experiments and numerical simulations, we study the dynamics of shock-cell and vortex structures ... -
Analysis and Modeling of Turbulence Anisotropy of a Swirled Hot Streak Flow
(The American Society of Mechanical Engineers (ASME), 2024)This study is carried out in the context of hot streak flows in high-pressure turbines, for which a correct prediction of the temperature evolution is required. The present work particularly focuses on the turbulence ... -
Reduction of Disk Friction Loss by Applying a Fin to the Back of a Centrifugal Impeller1
(The American Society of Mechanical Engineers (ASME), 2024)It is well known that the ratio of disk friction loss of low specific speed pumps is large. When the specific speed is 100 min−1, m3/min, m or less, the disk friction loss increases remarkably. In this study, focusing on ...