Results 11 to 20 of about 63,006 (231)
Image correlation velocimetry [PDF]
Experiments in Fluids, 1992 This paper focuses on the correlation of two successive scalar images for the purpose of measuring imaged fluid motions. A method is presented for deforming, or transforming, one image to another.
Dimotakis, P. E., Tokumaru, P. T.
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Diffeomorphic Particle Image Velocimetry [PDF]
IEEE Transactions on Instrumentation and Measurement, 2022 Preprint, under ...
Yong Lee, Shuang Mei
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Water Resources ResearchInformation 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 +3 more
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Neural Particle Image Velocimetry
CoRR, 2021 In the past decades, great progress has been made in the field of optical and particle-based measurement techniques for experimental analysis of fluid flows. Particle Image Velocimetry (PIV) technique is widely used to identify flow parameters from time-consecutive snapshots of particles injected into the fluid.
Nikolay Stulov, Michael Chertkov
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Towards harmonisation of image velocimetry techniques for river surface velocity observations [PDF]
Earth System Science Data, 2020 Since the turn of the 21st century, image-based velocimetry techniques have become an increasingly popular approach for determining open-channel flow in a range of hydrological settings across Europe and beyond.
M. T. Perks +24 more
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Echo Particle Image Velocimetry [PDF]
Journal of Visualized Experiments, 2012 The transport of mass, momentum, and energy in fluid flows is ultimately determined by spatiotemporal distributions of the fluid velocity field.(1) Consequently, a prerequisite for understanding, predicting, and controlling fluid flows is the capability to measure the velocity field with adequate spatial and temporal resolution.(2) For velocity ...
Nicholas, DeMarchi, Christopher, White
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Grid turbulence studied by Particle Image Velocimetry [PDF]
EPJ Web of Conferences, 2022 We studied the grid-generated turbulence by using Particle Image Velocimetry (PIV) technique. We test on this already well studied flow the new ways of analyzing spatially resolved PIV data, such as the spatial spectra and structure functions. We compare
Duda Daniel +3 more
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Uncertainty Estimation Methods in Particle Image Velocimetry [PDF]
EPJ Web of Conferences, 2022 The aim of present work is focused on determining accuracy of the measurement using the Particle Image Velocimetry based on an analysis of synthetic Uniform flow test and Couette flow test.
Novotný Jan +2 more
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On the Accuracy of Particle Image Velocimetry with Citizen Videos—Five Typical Case Studies
Hydrology, 2022 The application of image velocimetry to measure surface streamflow velocities requires meticulous preparation, including surveying and securing both the existence of floating features on the water surface, and, as in every hydrometry method, appropriate ...
Evangelos Rozos +2 more
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Frontiers in Water, 2021 Non-intrusive technologies for the in-situ measurement of river morphological features are increasingly popular in the scientific and practice communities due to their efficient and productive data acquisition.
H. You, M. Muste, D. Kim, S. Baranya
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