Results 111 to 120 of about 6,891,147 (192)

Flume experiments on macro‐roughness elements: Hydraulic response and potential influences on flood risk and habitat diversity

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Physical modelling of macro‐roughness elements for river restoration showed that backwater rise depends mostly on the relative structure width and approaching flow Froude number, with only minor differences among designs. Internal geometry modulated turbulent kinetic energy and flow partition between gap and wake.
Simone Speltoni, Volker Weitbrecht, Robert M. Boes, Isabella Schalko   +3 more
wiley   +1 more source

Flow resistance parameterization for large wood in two‐dimensional depth‐averaged models: Effects of flow condition, blockage, and sediment

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Using 16 flume experiments and 2D modeling, we show that large‐wood flow resistance is not a fixed property of wood porosity but varies systematically with flow condition, blockage and most strongly sediment‐shaped bed topography. The drag coefficient and Manning's n are interchangeable, but calibration is essential where scour occurs.
Fikri M. Radiyan, Xiaofeng Liu
wiley   +1 more source

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

Water Resources Research
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 ...
Carl J. Legleiter, Paul J. Kinzel, Mark Laker, Jeffrey S. Conaway   +3 more
doaj   +1 more source

Three dimensional analysis of the exhalation flow in the proximity of the mouth

Heliyon
The human exhalation flow is characterized in this work from the three-dimensional velocimetry results obtained by using the stereo particle image velocimetry (SPIV) measurement technique on the flow emitted from a realistic airway model.
F.A. Berlanga, P. Gomez, A. Esteban, L. Liu, P.V. Nielsen   +4 more
doaj   +1 more source

Middle Cerebral Artery Doppler and Cerebroplacental Ratio Predict Adverse Neurological Outcomes in Fetal Growth Restriction

Prenatal Diagnosis, Volume 46, Issue 9, Page 1423-1433, August 2026.
ABSTRACT Objective To assess the efficacy of middle cerebral artery (MCA) Doppler ultrasonography in predicting neurological and respiratory outcomes in fetuses with fetal growth restriction (FGR) and to establish a correlation between MCA Doppler and head circumference (HC). Method Retrospective cohort study examining singleton pregnancies affected by
Silvia Visentin, Ambrogio Pietro Londero, Giulia Lo Storto, Eugenio Ragazzi, Sabrina Salvadori, Eugenio Baraldi, Erich Cosmi   +6 more
wiley   +1 more source

An Image Filter Technique To Relax Particle Image Velocimetry

, 2011
Publication in the conference proceedings of EUSIPCO, Barcelona, Spain ...
Lars Rockstroh, Simeon Wahl, Zhe Wang 0008, Philipp Werner, Sven Simon 0001   +4 more
openaire   +2 more sources

Aligning Real‐Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel

steel research international, Volume 97, Issue 8, Page 4207-4222, August 2026.
Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang, Maria Thumfart, Roman Rössler, Stefan Pirker   +3 more
wiley   +1 more source

Left and right myocardial performance indices in growth‐restricted fetuses: systematic review and meta‐analysis

Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 174-187, August 2026.
ABSTRACT Objectives To evaluate alterations in fetal cardiac function in pregnancies complicated by fetal growth restriction (FGR) by synthesizing evidence on myocardial performance index (MPI) and its constituent parameters for both the left and right ventricles.
A. Sirico, I. Mappa, G. M. Maruotti, L. Cobellis, G. Rizzo   +4 more
wiley   +1 more source

A Novel Polynomial Approach for Particle Image Velocimetry (PIV) Image Reconstruction

Fluids
Particle Image Velocimetry (PIV) often utilizes a cross-correlation method to determine how far particles have moved between two captured images. The most common methods for vector estimation use computationally exhaustive cross-correlation functions ...
Briana M. Steven, Paul D. Docherty
doaj   +1 more source

Generalizing Sediment Transport Experiments From Narrow Flumes to Wider Channels

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Laboratory flumes are powerful tools for investigating riverine processes in a controlled environment. However, the proximity of flume sidewalls modifies the flow relative to natural river channels, and sidewall corrections are crucial for obtaining accurate estimates of bed stress.
Eric Deal, J. Taylor Perron, Kyle Kusack, Santiago J. Benavides, Ryan Bradley, Qiong Zhang, Ken Kamrin, Jeremy G. Venditti   +7 more
wiley   +1 more source