Journal of Fluids Engineering: Recent submissions
Now showing items 201-220 of 9024
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Selection Criteria for Rotor Number and Rotational Direction in Arrays of Closely Spaced Darrieus Turbines
(The American Society of Mechanical Engineers (ASME), 2024)The efficiency gains observed in a pair of closely spaced Darrieus turbines suggest the deployment of multiple turbines as an appealing solution for wind and, particularly, hydrokinetic applications, where the inflow ... -
Data-Guided Low-Reynolds-Number Corrections for Two-Equation Models
(The American Society of Mechanical Engineers (ASME), 2024)The baseline Launder–Spalding k−ε model cannot be integrated to the wall. This paper seeks to incorporate the entire law of the wall into the model while preserving the original k−ε framework structure. Our approach involves ... -
Analysis of ansys fluent for Wall-Modeled Large-Eddy Simulation of Turbulent Channel Flow
(The American Society of Mechanical Engineers (ASME), 2024)This study assesses the accuracy of ansysfluent 19.2, a commonly employed general-purpose finite volume solver, in the context of wall-modeled large-eddy simulation for turbulent channel flow at a moderate Reynolds number, ... -
Optical Considerations for Designing Laser-Based Volumetric Particle Tracking Velocimetry
(The American Society of Mechanical Engineers (ASME), 2024)The trend to conduct volumetric particle tracking velocimetry (PTV) experiments with ever-increasing volumes, at a given particle density, poses increasing challenges on the design of such experiments in terms of the power ... -
Thermal Protection Analysis of Hypersonic Reentry Nose Cone With Multirow Disk Spike Using Lateral Single/Multijets: A Computational Investigation
(The American Society of Mechanical Engineers (ASME), 2025)This research examines the efficacy of employing lateral multijets to decrease thermal effects on the blunt body featuring a multirow disk (MRD) spike, which holds significant importance in the design of high-speed vehicles. ... -
Numerical Investigation of Unsteady Flow Characteristics of Planar Plug Nozzle in Overexpanded Conditions
(The American Society of Mechanical Engineers (ASME), 2024)Plug nozzles are frequently regarded as a strong contender for futuristic single-stage-to-orbit (SSTO) space missions due to their inherent altitude-compensating properties. Optimizing the design of these nozzles to achieve ... -
Design and Implementation of an Experimental Test Bench for the Study of Active Flow Control in Scale Wind Turbines
(The American Society of Mechanical Engineers (ASME), 2025)Advancements in wind turbine technology are critical for the global renewable energy landscape. The continuous growth of wind turbine capacities has presented various challenges for flow and power control strategies. New ... -
Experimental and Simulation Investigation of J-Shaped and Kammtail Virtual Airfoils in Small-Scale Horizontal Axis Wind Turbines
(The American Society of Mechanical Engineers (ASME), 2024)In this work, the performance of new wind blade designs for small-scale horizontal axis wind turbines (HAWTs) was studied and compared with the performance of a baseline design. Three J-shaped pressure-side truncation ... -
Effects of Tire Attributes on the Aerodynamic Performance of a Generic Car–Tire Assembly1
(The American Society of Mechanical Engineers (ASME), 2024)The effect of tires on the overall aerodynamic drag in a car–tire assembly has been studied and deemed considerable from past studies. It has been shown that it is important to understand how the vehicle body and the tires ... -
Control of Flow and Acoustic Fields Around an Axial Fan Utilizing Plasma Actuators
(The American Society of Mechanical Engineers (ASME), 2024)Small axial fans, commonly employed for cooling electronic equipment, are frequently housed within narrow ducts, where intense tonal sound with duct resonance can occur, particularly when the blade passing frequency or its ... -
Benchmarking the Performance of the Actuator-Disk Method for Low-Pressure Axial Flow Fan Simulation
(The American Society of Mechanical Engineers (ASME), 2024)The actuator-disk method is a cost-effective simulation tool that implicitly represents the rotor of a turbomachine using a blade-element approach combined with two-dimensional (2D) airfoil coefficient input data. Actuator-disk ... -
Design, Fabrication, and Testing of a Novel Thermally Actuated Tesla Valve: A Hybrid Microvalve1
(The American Society of Mechanical Engineers (ASME), 2024)A novel thermally actuated hybrid microvalve (similar to a Tesla valve configuration) was designed, fabricated, assembled, and tested using soft lithography-based approaches. The modified design integrates the “normally ... -
Particulate Flow of a Viscous Fluid Driven by a Torsionally Oscillating Disk
(The American Society of Mechanical Engineers (ASME), 2024)A novel hydrodynamic model is used to study oscillatory flow of a particle-laden fluid driven by a torsionally oscillating disk. The present model is featured by a modified form of Navier–Stokes equations which is conceptually ... -
Design Process for Scaled Model Wind Turbines Using Field Measurements
(The American Society of Mechanical Engineers (ASME), 2025)This paper presents a method for designing wind turbine-scaled models based on field data. The scaling process requires careful consideration of the system's physical laws and similarity criteria. Scaling methods depend ... -
Study of a Cavitation Treatment in Kaplan Hydro-Turbine
(The American Society of Mechanical Engineers (ASME), 2024)This research proposes an air-injection treatment for the cavitation phenomena in the Kaplan turbine. An unsteady numerical model is created to predict the cavitating flow through a 3-in. axial hydroturbine before and after ... -
A Solution Method for the Filtered Lifting Line Theory
(The American Society of Mechanical Engineers (ASME), 2024)The filtered lifting line theory presents a continuous form of the inviscid momentum equations of flow over a lifting device, such as a wing or rotor blade, using body forces without mathematical singularities. This theory ... -
Numerical Study on the Effect of Channel Configuration on Mixture Formation of an Axial Flow Wave Rotor Combustor
(The American Society of Mechanical Engineers (ASME), 2024)Wave rotor combustor technology is a new technical means to improve the thermal efficiency of aero-engine by using unsteady flow and constant volume combustion. In this article, the influence of wave rotor combustor channel ... -
Detached Eddy Simulation of Micro-Vortex Generators Mounted on NACA 4412 Airfoil
(The American Society of Mechanical Engineers (ASME), 2025)Micro-vortex generators (MVGs) are simple vane-type devices installed on surfaces , i.e., aircraft wing and tail, to control boundary layer flow separation. They are cost-effective and require an efficient numerical method ... -
Shock Vector Control of a Double Divergent Nozzle for Futuristic Space Vehicles
(The American Society of Mechanical Engineers (ASME), 2025)Double divergent nozzles (DDNs) have been explored in the recent years to enhance the launch capabilities of space vehicles. A DDN is touted to be beneficial for launch vehicles over a single divergent nozzle (SDN) because ... -
Experimental and Numerical Study of the Flow Around Rigid and Flexible Hydrofoils for Wetted and Cavitating Flow Conditions
(The American Society of Mechanical Engineers (ASME), 2024)The hydro-elastic response of a flexible NACA 0015 hydrofoil is investigated for both wetted and cavitating flow conditions. Computational fluid dynamics (CFD) analysis are performed using a fully implicit coupling between ...