Results 121 to 130 of about 84,280 (228)

An Optical Flow Algorithm with Automatic Parameter Adjustment for Fluid Velocimetry

open access: yesJournal of Open Research Software
Particle image velocimetry is a standard non-intrusive experimental fluid mechanics technique that is used for determining fluid flow velocities quantitatively.
Gauresh Raj Jassal   +2 more
doaj   +1 more source

Impacts of Blade Camber on Cross‐Flow Turbine Performance and Loading

open access: yesWind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT Cross‐flow turbines show promise for renewable energy generation from wind and tidal sources. The rotating reference frame of cross‐flow turbine blades results in virtual camber and incidence due to streamline curvature, altering the lift, drag, and pitching moment of the blades. Adding geometric camber is therefore likely to alter performance
Ari Athair   +3 more
wiley   +1 more source

X-Ray imaging method for in-situ study of particle-laden flows

open access: yese-Journal of Nondestructive Testing
 The accurate measurement of flow parameters often depends on sensor accessibility. Optical flow assessment techniques, such as Particle Image Velocimetry (PIV) and Particle Tracking Velocimetry (PTV), are limited to optically transparent media. However,
Julian Kattinger   +5 more
doaj   +1 more source

Advancing Wastewater Treatment via Next‐Generation CFD: A Critical Review of Multiphase Physics, Scale‐Up Challenges, and AI Integration

open access: yesWater Environment Research, Volume 98, Issue 5, May 2026.
CFD integrated with AI provides a next‐generation framework for optimizing aeration systems in wastewater treatment plants, improving oxygen transfer, addressing scale‐up limitations, and enabling energy‐efficient, low‐carbon operation. ABSTRACT Wastewater treatment plants (WWTPs) are facing dual pressures of increasing influent variability and the ...
Egemen Aras, Damla Yilmaz Çelik
wiley   +1 more source

Deep Learning‐Based Particle Tracking Velocimetry (PTV) for Spherical and Non‐Spherical Particles: Application to Sediment Transport

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract Particle‐resolved measurements in physical experiments are crucial to the study of sediment transport. Conventional particle tracking velocimetry (PTV) relies on template matching of simple shapes via intensity thresholding and nearest‐neighbor linking.
Wenzheng Su   +3 more
wiley   +1 more source

Refinement of a Framework for Moving Aircraft River Velocimetry (MARV) and Application to Particle Tracking Along Alaskan Rivers

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract Information on river velocities enhances understanding flood hazards, evaluating habitat conditions, and predicting the transport of floating materials. In this follow‐up study, we used data from two new sites, one with a more complex morphology and the other with a lower suspended sediment concentration, to provide further evidence that ...
Carl J. Legleiter   +3 more
wiley   +1 more source

Reversible Neurological Manifestations Preceding Biochemical Deterioration in Postpartum HELLP Syndrome—A Case Report and Literature Review

open access: yesThe Journal of Clinical Hypertension, Volume 28, Issue 5, May 2026.
ABSTRACT Posterior reversible encephalopathy syndrome (PRES) is a rare but severe neurological complication associated with hypertensive disorders of pregnancy and HELLP syndrome. We report a postpartum case in which neurological manifestations preceded the full biochemical expression of HELLP syndrome. A 22‐year‐old primigravida was admitted at 36 + 0
Dario Colacurci   +19 more
wiley   +1 more source

Particle Image Velocimetry in practice

open access: yes, 2009
Experimental fluid mechanics has for a long time been used to visualize flow phenomenon. An early pioneer was Ludwig Prandtl who used aluminum particles in water flumes to describe the flow in a qualitative manner. In line with the rapid development of Computational Fluid Dynamics, CFD, the need for new validation tools has increased.
openaire   +2 more sources

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