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Handbook for Surface Flow Velocity Measurement
, 2019 Acquisition of real-time hydraulic data is an essential component for flood forecasting. However, we frequently face difficulties in obtaining discharge data using classical contact methods during high magnitude floods and for systems experiencing rapid hydro-geomorphological adjustment.
Hortobagyi, Borbala +3 more
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Flow and Turbulence driven Water Surface Roughness and Gas Exchange Velocity in Streams
E3S Web of Conferences, 2018 Gas exchange velocity in streams and rivers controls fluxes of atmospheric gases across the air-water interface and is commonly related to the turbulence at the water side. Similarly, river flow hydraulics influences the water surface roughness, which is
Noss Christian +3 more
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Remote Sensing, 2020 River flow monitoring is essential for many hydraulic and hydrologic applications related to water resource management and flood forecasting. Currently, unmanned aerial systems (UASs) combined with image velocimetry techniques provide a significant low ...
Silvano Fortunato Dal Sasso +2 more
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ICE FLOW VELOCITY MAPPING IN GREENLAND USING HISTORICAL IMAGES FROM 1960s TO 1980s: SCHEME DESIGN [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Ice flow velocity over long time series in Greenland plays a vital role in estimating and predicting the mass balance of the Greenland Ice Sheet and its contribution to global sea level rise.
Z. Yu +9 more
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Exploiting LSPIV to assess debris-flow velocities in the field [PDF]
Natural Hazards and Earth System Sciences, 2018 The assessment of flow velocity has a central role in quantitative analysis of debris flows, both for the characterization of the phenomenology of these processes and for the assessment of related hazards. Large-scale particle image velocimetry (LSPIV)
J. I. Theule +5 more
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Shui kexue jinzhan, 2017 We propose a new method for reconstructing complex surface velocity field in weir flow which is notoriously difficult to measure due to its sharp drop and high fluctuation. The new method is able to map the curved flow surface by two coplanar cameras and
Liekai CAO +4 more
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Analysis of the Velocity Distribution in Partially-Filled Circular Pipe Employing the Principle of Maximum Entropy. [PDF]
PLoS ONE, 2016 The flow velocity distribution in partially-filled circular pipe was investigated in this paper. The velocity profile is different from full-filled pipe flow, since the flow is driven by gravity, not by pressure.
Yulin Jiang, Bin Li, Jie Chen
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On the scaling of the slip velocity in turbulent flows over superhydrophobic surfaces [PDF]
Physics of Fluids, 2016 Superhydrophobic surfaces can significantly reduce hydrodynamic skin drag by accommodating large slip velocity near the surface due to entrapment of air bubbles within their micro-scale roughness elements. While there are many Stokes flow solutions for flows near superhydrophobic surfaces that describe the relation between effective slip length and ...
Jongmin Seo, Ali Mani
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Effect of Crest Roughness on Flow Characteristics over Circular Weirs [PDF]
Civil Engineering Infrastructures Journal, 2013 Different construction materials with different roughness used to make circular weirs highly affect surface roughness and, in turn, flow hydraulics passing over these structures.
Rasoul Ghobadian +3 more
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Partial Differential Equations in Applied Mathematics, 2021 The aim of the current investigation is to study the assisting and opposing flow effects on hybrid nanofluid (SiO2-MoS2/water) flow past a moving surface under the impact of heat source/sink, thermal radiation and velocity slip.
Moh Yaseen +2 more
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