Journal of Fluids Engineering: Recent submissions
Now showing items 141-160 of 9024
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Unsteady Flow and Pressure Pulsation Characteristics in an Ultra-High-Speed Centrifugal Pump Considering the Weak Compressibility Effect
(The American Society of Mechanical Engineers (ASME), 2025)Ultra-high-speed centrifugal pumps are frequently utilized in chemical and aerospace industries, yet the impact of fluid weak compressibility on pressure pulsation remains unclear. This study employs the delayed detached ... -
Static and Dynamic Time Filtering Techniques for Hybrid RANS-Large Eddy Simulation of Non-Stationary Turbulent Flows
(The American Society of Mechanical Engineers (ASME), 2025)Unsteady turbulent wall bounded flows can include complex flow physics such as temporally varying mean pressure gradients, intermittent regions of high turbulence intensity, and interaction of different scales of motion. ... -
Development and Validation of Machine-Learned Actuator Line Model for Hydrokinetic Turbine Rotor
(The American Society of Mechanical Engineers (ASME), 2025)This study develops and validates a machine-learned (ML) actuator line model (ALM) as a promising advancement in turbine/rotor modeling that can be applied to diverse engineering applications. The model alleviates two ... -
Thermally Mediated Droplet Breakup Dynamics Within a Symmetric T-Junction
(The American Society of Mechanical Engineers (ASME), 2025)This article presents a computational-based investigation exploring the influence of thermocapillarity and surface wettability on the splitting behavior of a droplet in a three-dimensional T-junction microchannel. The ... -
An Experimental Investigation of the Impact of Anisotropic Slip Length on Turbulent Flow Over Superhydrophobic Surfaces Within an Open Channel
(The American Society of Mechanical Engineers (ASME), 2025)This study investigates the sustainability and applicability of commercial superhydrophobic (SH) coatings for reducing skin friction drag. Three different SH surfaces were applied to flat plates using a spray coating ... -
Impact of Roughness Spanwise Wavelength on Secondary Flow Rearrangement
(The American Society of Mechanical Engineers (ASME), 2025)Spanwise heterogeneity in surface roughness generates secondary mean flows in a rough-wall turbulent boundary layer. This study investigates the influence of roughness spanwise wavelength on the arrangement of these secondary ... -
The Influence of Oblique Tunnel Portals and Blockage Ratio on the Aerodynamic Performance of Urban Rapid Rail Tunnels
(The American Society of Mechanical Engineers (ASME), 2025)The study aims to understand the differences in aerodynamic pressure between urban rapid rail (URR) transit and high-speed railway tunnels caused by different tunnel portal structures. In this paper, a three-dimensional ... -
Influence of Nozzle Convergence Angle on the Flow Characteristics of Synthetic Jets in a Turbulent Crossflow Boundary Layer
(The American Society of Mechanical Engineers (ASME), 2025)The effect of nozzle convergence angle of a circular synthetic jet actuator issuing into a turbulent crossflow is investigated using unsteady Reynolds-averaged Navier–Stokes simulations. The study examines three convergence ... -
Impact of Flow Rate on Turbopump Inducer Blade-to-Blade Interaction During Local Cavitation Instability
(The American Society of Mechanical Engineers (ASME), 2025)In turbopump inducers, cavitation on one blade can change incidence on the following blade, and this “blade-to-blade interaction” can lead to local cavitation instabilities such as alternate blade cavitation (ABC) and ... -
Investigation of the Surface Pressure and Thrust Generated by a Tilt Distributed Electric Propulsion Wing
(The American Society of Mechanical Engineers (ASME), 2025)This study is a continuation of the work of Lee et al. (2024, “Aerodynamics and Flowfield of Distributed Electric Propulsion Tiltwing During Transition With Deflected Trailing-Edge Flap,” ASME J. Fluids Eng., 146(5), p. ... -
Side-View Imaging-Based Analysis of the Balloon Inflation–Deflation Dynamics of a Microfluidic Cell Compressor
(The American Society of Mechanical Engineers (ASME), 2025)Microfluidic devices are utilized to mechanically stimulate cells for cellular mechanobiology studies. Previously, we developed a microfluidic cell compressor using photolithography and soft lithography. The device had ... -
Three-Dimensional Numerical Investigation of Bubbles Growing and Merging in Superheated Nucleate Boiling
(The American Society of Mechanical Engineers (ASME), 2025)To enhance heat dissipation with boiling flows, simulations of bubble merging need to be examined from a fundamental perspective with a focus on the mechanisms near the interface. The current study develops a model for 3D ... -
A Computational Study of In-Phase and Anti-Phase Interactions of Fish in a Phalanx School
(The American Society of Mechanical Engineers (ASME), 2025)Biological studies have shown that schooling behavior benefits fish's swimming performance. Particularly, side-by-side, or phalanx, formation, combined with the synchronization of undulation of the neighbors, was shown to ... -
A Numerical Investigation of the Longitudinal Vortex Pair Structure in Underbody Diffuser Flows
(The American Society of Mechanical Engineers (ASME), 2025)An automotive diffuser is an open channel within the underbody of a vehicle that features a diverging ramp in the aft section. The performance of a diffuser is sensitive to ground effect where decreases in ride height ... -
Impact of Blade Design on Static Pressure Recovery of Rotor-Only Low-Pressure Axial Fans
(The American Society of Mechanical Engineers (ASME), 2025)In a broad range of applications, low-pressure axial fans are installed without outlet guide vanes and are discharging a swirling flow directly into a free atmosphere. A static pressure recovery can occur between a position ... -
Digitalization of Test Rigs for Model Acceptance Testing of Hydraulic Machines: Gaussian-Process-Based Digital Twin of a Turbine on a Hydraulic Test Rig for Efficiency Analysis and Test Automation
(The American Society of Mechanical Engineers (ASME), 2025)Systematic measuring of hydraulic machine's performance data at hydraulic model test rigs involves comprehensive expert knowledge of the test rig engineer and is time-consuming, as the multidimensional operation space must ... -
Orientational Dynamics of Long Flexible Fibers in Wall-Bounded Turbulence
(The American Society of Mechanical Engineers (ASME), 2025)In this paper, we study numerically the role of fiber length and flexibility on the orientational dynamics of slender fibers in turbulent channel flow. We consider fibers of different flexibility at varying aspect ratio, ... -
New Electro-Active Polymers-Based Plasma Actuators for Simultaneous Flow Control and Ice Protection
(The American Society of Mechanical Engineers (ASME), 2025)The current work introduces a new device for effective flow control and ice removal applications based on the combination of a nonthermal plasma discharge with the excitation of an electro-active polymer membrane. This new ... -
Rotary Displacement Pump With a Sinusoidal Working Chamber and Oscillating Pistons
(The American Society of Mechanical Engineers (ASME), 2024)This article critically analyzes the structural design of a rotary positive displacement pump described in two patent applications. The general description of the pump in the patent applications is the main reason why the ... -
On the Dynamics of Bubbles Passing Through a Sand Bed Layer
(The American Society of Mechanical Engineers (ASME), 2025)The present research paper reports the outcomes of an extensive laboratory investigation examining the effects of grain size and air discharge on bubble dynamics of bubble plumes passing through a sand bed layer. The effects ...