Results 11 to 20 of about 61,839 (207)
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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Particle Imaging Velocimetry Gyroscope [PDF]
Sensors, 2019 Inertial measurement units (IMUs) are typically classified as per the performance of the gyroscopes within each system. Consequently, it is critical for a system to have a low bias instability to have better performance. Nonetheless, there is no IMU available commercially that does not actually suffer from bias-instability, even for the navigation ...
Ahmed A. Youssef, Naser El-Sheimy
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Remote Sensing, 2020 Image velocimetry has proven to be a promising technique for monitoring river flows using remotely operated platforms such as Unmanned Aerial Systems (UAS).
Sophie Pearce +13 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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Image correlation velocimetry [PDF]
Experiments in Fluids, 1995 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. Taylor series expansions of the Lagrangian displacement field are used, in conjunction with an integral form of the equations of motion, to approximate this ...
Tokumaru, P. T., Dimotakis, P. E.
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River Surface Velocimetry Based on Virtual River Dataset and Modulated-RAFT
IEEE Access, 2023 In recent years, there has been a surge of interest in image-based velocimetry methods for river surface velocity (RSV) estimation due to their efficiency and accuracy, including large-scale particle image velocimetry (LSPIV), space-time image ...
Yixin Wu +5 more
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Adaptively monitoring streamflow using a stereo computer vision system [PDF]
Hydrology and Earth System Sciences, 2023 The gauging of free surface flows in waterways provides the foundation for monitoring and managing the water resources of built and natural environments.
N. R. Hutley +7 more
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Recent Advancements and Perspectives in UAS-Based Image Velocimetry
Drones, 2021 Videos acquired from Unmanned Aerial Systems (UAS) allow for monitoring river systems at high spatial and temporal resolutions providing unprecedented datasets for hydrological and hydraulic applications.
Silvano Fortunato Dal Sasso +2 more
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On the Uncertainty of the Image Velocimetry Method Parameters
Hydrology, 2020 Image velocimetry is a popular remote sensing method mainly because of the very modest cost of the necessary equipment. However, image velocimetry methods employ parameters that require high expertise to select appropriate values in order to obtain ...
Evangelos Rozos +4 more
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