Journal of Fluids Engineering: Recent submissions
Now showing items 101-120 of 8892
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Effects of Impact Energy and Aspect Ratio on the Motion of Particle Clouds in Stagnant Water
(The American Society of Mechanical Engineers (ASME), 2024)A series of laboratory experiments was conducted to investigate the effects of impact energy and other initial controlling parameters on the motion of particle clouds in stagnant water. Experiments were performed for two ... -
Research on Unsteady Flow Mixing Characteristics of Centripetal Wave Rotor Combustor
(The American Society of Mechanical Engineers (ASME), 2024)The centripetal wave rotor combustor can better match the centrifugal compressor and the axial turbine of the reference machine, reduce the size of the engine and simplify the transition section structure. In this paper, ... -
Comparison of Vortex Structures and Turbulent Heat Transport for a Single Jet and Multiple Jets in Crossflow
(The American Society of Mechanical Engineers (ASME), 2025)Large eddy simulations (LESs) were conducted for a single jet and five spanwise jets with a jet-to-jet spacing of 1.6D (jet nozzle diameter). The jet-to-crossflow velocity ratio was 3.3, and the Reynolds number based on ... -
Experimental Investigation of the Effect of Rake on a Bluff Body Equipped With a Diffuser
(The American Society of Mechanical Engineers (ASME), 2025)This article presents the results of an experimental investigation into the impact of rake, or inclination of the underfloor, on the aerodynamics of a bluff body equipped with an underbody diffuser. An extensive wind tunnel ... -
Three-Dimensional Simulation of Cavitating Flow in Reciprocating Positive Displacement Pumps With Fluid-Actuated Valves
(The American Society of Mechanical Engineers (ASME), 2024)An in-house compressible three-dimensional (3D) finite volume computational fluid dynamics (CFD) method, with statistical turbulence model and moving grid capabilities, is presented and applied to the suction stroke of a ... -
On Using the Distributor as a Multi Degree-of-Freedom System to Mitigate the Pressure Pulsation in an Axial Turbine at Speed-No-Load
(The American Society of Mechanical Engineers (ASME), 2024)Hydraulic axial turbines are more frequently utilized for grid regulation purposes. Sometimes, they must be operated at speed-no-load (SNL) conditions, which is characterized for some machines by a varying number of large ... -
A Comparative Study on the Prediction of Hydrogen, Nitrogen, and Water Vapor of Regenerative Hydrogen Pump With Different Turbulence Models
(The American Society of Mechanical Engineers (ASME), 2024)The flow in a regenerative hydrogen pump used in a proton exchange membrane (PEM) fuel cell system is complex, including velocity mixing, streamline distortion, swirling flow, corner flow, and possible boundary separation. ... -
Stability and Energy Balance Analysis of Axisymmetric Boundary Layer: Effects of Oblique Nonuniform Suction and Injection
(The American Society of Mechanical Engineers (ASME), 2024)This paper discusses the modal global stability analysis of the boundary layer (BL) formed over a circular cylinder subjected to oblique nonuniform suction and injection. The linearized stability equations governing the ... -
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 ...