Journal of Fluids Engineering: Recent submissions
Now showing items 401-420 of 9024
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Rheological Characterization of High-Molecular-Weight Polyethylene Oxide—An Extensive Parametric Experimental Study
(The American Society of Mechanical Engineers (ASME), 2022)A comprehensive study of the rheological characterization of the aqueous solutions of polyethylene oxide (PEO) with molecular mass of 4 × 106, 5 × 106, and 8 × 106 g/mol, respectively, named (4 miDA), (5 miDA), and (8 miDA) ... -
Impact of Wall Temperature on Aerothermal Characteristics of an Array of Surface Microstructures
(The American Society of Mechanical Engineers (ASME), 2022)The aero-thermal behavior of surface microstructures is of wide relevance, especially given the development of additive manufacturing (AM). Of particular interest is the interaction between fluid flow and heat transfer. ... -
Research on the Influence of Impeller Tip Clearance on the Internal Flow Loss of Axial Circulating Pump Under Unpowered Driven Condition
(The American Society of Mechanical Engineers (ASME), 2022)An axial-flow pump (AFP) a key hydraulic component in the circulating water system of large ships. When the speed of a large ship meets certain requirements, the AFP operates in the unpowered driven condition and has the ... -
High-Order Large Eddy Simulations of a Wind Turbine in Ducted and Open-Rotor Configurations
(The American Society of Mechanical Engineers (ASME), 2022)High-order large eddy simulations are performed to study the performance and flow fields of a ducted wind turbine (DWT) operating at different tip speed ratios. To evaluate the effects of the duct, simulations with the ... -
Analytical Solution to Time-Periodic Electro-Osmotic Flow of Generalized Maxwell Fluids in Parallel Plate Microchannel With Slip-Dependent Zeta Potential
(The American Society of Mechanical Engineers (ASME), 2022)In this technical brief, we report the flow characteristics of a time-periodic electrokinetically mediated flow of generalized Maxwell fluid through a straight planar microchannel considering the interfacial slip effect ... -
The Importance of Morphology in Further Unraveling the Bumblebee Flight Paradox
(The American Society of Mechanical Engineers (ASME), 2022)The size of a bumblebee relative to its wing span would suggest that flight is not possible according to the conventional aerodynamic theories, yet nature shows that not to be true, hence the bumblebee paradox. Bumblebee ... -
Experimental Study of Flow Hydrodynamics Around Circular Cylinder Arrangements Using Particle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 2022)This study investigates the turbulent flow properties experimentally in the vicinity of two side-by-side circular cylinders, along with the influence of the third cylinder of the same dimension placed in the upstream and ... -
Maximum Likelihood Identification of Cavitation Instabilities in Axial Inducers
(The American Society of Mechanical Engineers (ASME), 2022)The article illustrates the results of an exploratory study on the effectiveness of maximum likelihood Bayesian estimation in the identification of cavitation instabilities in axial inducers using the blade-to-blade pressure ... -
Impact of Disc Wheel Geometry on Aerodynamic Performance: A Computational Fluid Dynamics Investigation
(The American Society of Mechanical Engineers (ASME), 2022)Aerodynamic drag is the main resistive force in cycling at high speeds and on flat terrain, so reducing it is critical to improving cyclist performance. Aerodynamic comparisons have been made in the past between different ... -
Numerical Investigation and Experiment on Natural Circulation Resistance and Energy Characteristics in a Circulating Axial Pump
(The American Society of Mechanical Engineers (ASME), 2022)The influence of angle matching in rotor–stator interference (RSI) zone on natural circulation resistance (NCR) of circulating pump in natural circulation condition is illustrated by numerical method, and the analysis and ... -
Thermodynamic Suppression Effect of Cavitation Arising in a Hydrofoil in 140 °C Hot Water
(The American Society of Mechanical Engineers (ASME), 2022)The thermodynamic suppression effect of cavitation arising in a NACA0015 single hydrofoil is experimentally investigated in water at mainstream temperatures of T∞ = 20 °C to 140 °C in the present study. The cavity length ... -
The Influence of Womersley Number on Non-Newtonian Effects: Transient Computational Study of Blood Rheology
(The American Society of Mechanical Engineers (ASME), 2022)A properly validated computational fluid dynamics methodology is a valuable predictive tool capable of aiding in the development of new methods for treating cardiovascular disease (CVD). Although blood is a shear-thinning ... -
Analysis of Helical Grafts in Steady and Unsteady Flow: Development of a Novel Bypass Graft
(The American Society of Mechanical Engineers (ASME), 2022)Helical secondary flow has been shown to be beneficial as it has improved bypass graft patency in revascularization through more uniform wall shear stress and improved mixing. An unfavorable by-product of generating helical ... -
Large Eddy Simulation on the Cavitation Flow and Noise Characteristics of a NACA0009 Hydrofoil With Different Tip Clearance Sizes
(The American Society of Mechanical Engineers (ASME), 2022)All hydraulic machinery has a tip clearance, which not only produces tip-leakage vortexes (TLVs), but also reduces the energy performance of the machinery. In addition, tip clearance leads to cavitation and attendant ... -
Numerical Investigation of Supersonic Air-to-Air Ejectors Including Design Effects on Entrainment Efficiency
(The American Society of Mechanical Engineers (ASME), 2022)The objective of this work is to develop and validate a computational fluid dynamics (CFD) model of a supersonic air ejector, a device largely used in aircraft, and to determine how its efficiency behaves when some of its ... -
Reducing Pumping Power Consumption by Pulsed Operation?
(The American Society of Mechanical Engineers (ASME), 2022)A computational study, based on exact solutions for transient laminar flow in pipes and on an empirical correlation for transition to turbulence in the presence of temporal acceleration, shows that, provided certain ... -
A Patch-Based Flow Field Reconstruction Method for Particle Image Velocimetry Data of Multistage Centrifugal Pumps
(The American Society of Mechanical Engineers (ASME), 2022)Particle image velocimetry (PIV) technology, which performs the full-field velocity measurement on the laser plane, plays a crucial role in studying complex flow structures in multistage centrifugal pumps. In particle image ... -
Machine-Learning-Based Reconstruction of Turbulent Vortices From Sparse Pressure Sensors in a Pump Sump
(The American Society of Mechanical Engineers (ASME), 2022)Getting access to the state of turbulent flow from limited sensor measurements in engineering systems is a major challenge. Development of technologies to accurately estimate the state of the flow is now possible with the ... -
Numerical Simulations of Fluid Transport in Heterogeneous Darcy–Forchheimer–Brinkman Layers
(The American Society of Mechanical Engineers (ASME), 2022)The coupling of parallel flow, in a three-layer channel, with the main fluid flow sandwiched between two Darcy–Forchheimer–Brinkman (DFB) permeable layers of varying porousness is investigated in this work. A single binary ... -
Slosh Damping in Rectangular Liquid Tank With Additional Blockage Effects Under Pitch Excitation
(The American Society of Mechanical Engineers (ASME), 2022)The quantification and damping of slosh responses are significant due to the increasing demand for safety of the liquid-based applications under severe external excitation. Recently, the solid or perforated baffle plates ...