Results 111 to 120 of about 11,468,149 (219)
River Research and Applications, Volume 42, Issue 8, Page 1654-1672, October 2026.ABSTRACT Flow velocity measurement is fundamental to hydrological and hydraulic studies, providing essential data for streamflow estimation and river dynamics analysis. Traditional in situ methods like propeller gauges and acoustic Doppler current profilers are accurate but intrusive and labour‐intensive, while non‐intrusive image processing methods ...
Ghazaleh Nassaji Matin +4 more
wiley +1 more source
Laboratory Study of the Dynamics of a Pollutant Within a City Block During Urban Flooding
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract During urban flooding, pollutants from point releases (e.g., sewer overflows) transported in street runoff can invade city blocks, exposing residents to contamination risks. The present laboratory study focuses on the intrusion of pollutants from flooded streets into a porous city block under steady flow conditions.
C. Fagour, S. Proust, E. Mignot
wiley +1 more source
Three dimensional analysis of the exhalation flow in the proximity of the mouth
HeliyonThe 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 +4 more
doaj +1 more source
25 Years of Particle Image Velocimetry in Aerodynamics [PDF]
, 2009 Welcome to the Symposium „25 years of Particle Image Velocimetry in Aerodynamics”! It all started in September 1984 when a group of researchers from Oldenburg shipped their highenergy ruby laser across a bumpy highway to Göttingen.
Kompenhans, Jürgen
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Uncertainty quantification for ultrasound image velocimetry
Journal of the Royal Society InterfaceAbstract Ultrasound image velocimetry (UIV) is a non-invasive method with high temporal–spatial resolution for measuring flow velocity in opaque media, particularly in biomedical fields. Velocity measurement uncertainty propagates into pressure and shear estimates, which are critical diagnostic parameters.
Rozhin Derakhshandeh +3 more
openaire +2 more sources
An Image Filter Technique To Relax Particle Image Velocimetry
, 2011 Publication in the conference proceedings of EUSIPCO, Barcelona, Spain ...
Lars Rockstroh +4 more
openaire +2 more sources
A Novel Polynomial Approach for Particle Image Velocimetry (PIV) Image Reconstruction
FluidsParticle 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
Integrated particle image velocimetry and fluid-structure interaction analysis for patient-specific abdominal aortic aneurysm studies. [PDF]
Biomed Eng Online, 2023 Özcan C +3 more
europepmc +1 more source
THE APPLICATION OF LASERS IN MEASUREMENT OF FLUID FLOW THROUGH DRILLING BIT NOZZLES
Rudarsko-geološko-naftni Zbornik, 1993 Two optical methods based on laser and video technology and digital signal and image processing techniques - Laser Doppler velocimetry (LDV) and Particle image velocimetry (PIV) were applied in highly accurate fluid flow measurement. Their application in
Radenko Drakulić +2 more
doaj
Analysis of turbulence and vortex structures by flow mapping [PDF]
, 1997 The technique of Particle Image Velocimetry (PIV) flow mapping is reviewed and comparisons made with Laser Doppler Anemometry (LDA). Results are presented showing the application of PlV to the determination of coherent structures in grid-generated ...
Whale, J., Greated, C.A., Damm, C.E.
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