Results 1 to 10 of about 154,945 (258)
Conventional Point-Velocity Records and Surface Velocity Observations for Estimating High Flow Discharge [PDF]
Entropy, 2014 Flow velocity measurements using point-velocity meters are normally obtained by sampling one, two or three velocity points per vertical profile. During high floods their use is inhibited due to the difficulty of sampling in lower portions of the flow ...
Giovanni Corato +2 more
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Journal of Pipeline Science and Engineering, 2021 The critical flow velocity phenomenon is common in erosion-corrosion of many materials. It is of great importance to develop methods to determine the critical flow velocity and understand mechanisms of the phenomenon so that it can be used for proper ...
Z.B. Wang, Y.G. Zheng
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SURFACE FLOW VELOCITY MEASUREMENTS FROM UAV-BASED VIDEOS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 Most measuring methods for determining the volumetric flow rate or surface flow velocity have in common that they cannot be safely used under extreme outflow conditions. Especially in catastrophic situations, it is of particular interest to determine the
J. Brauneck, T. Gattung, R. Jüpner
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Measuring Surface Velocity of Water Flow by Dense Optical Flow Method [PDF]
Water (Switzerland), 2019 Recent advances in video processing technology have provided a new approach to measuring the surface velocity of water flow (SVWF). However, most of the previous researches using video processing technology depended on tracers for target tracing, requiring spraying tracers in the measurement process.
Heng Wu
exaly +2 more sources
From Surface Flow Velocity Measurements to Discharge Assessment by the Entropy Theory [PDF]
Water (Switzerland), 2017 A new methodology for estimating the discharge starting from the monitoring of surface flow velocity, usurf, is proposed. The approach, based on the entropy theory, involves the actual location of maximum flow velocity, umax, which may occur below the water surface (dip phenomena), affecting the shape of velocity profile.
Tommaso Moramarco +2 more
exaly +3 more sources
Surface velocity model of the flow caused by a DBD plasma actuator
Nihon Kikai Gakkai ronbunshu, 2018 The surface velocity model is proposed for modelling the flow caused by a DBD plasma actuator. While numerical model presented up to now for the DBD plasma actuator, i.e.
Keunseob LEE +2 more
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Velocity profiles of fluid flow close to a hydrophobic surface [PDF]
EPJ Web of Conferences, 2017 The results of research on viscous liquid flow upon a superhydrophobic surface are presented in the paper. In the introduction, the degrees of surface hydrophobicity in correlation with an adhesion coefficient are defined.
Fialová Simona +3 more
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Flow Measurement in Steep Channels Using Large Scale Particle Image Velocimetry (LSPIV) [PDF]
علوم و مهندسی آبیاری, 2022 Measuring flow discharge in rivers and open channels has always been one of the most important concerns of water sciences experts. The most common flow measurement method in open channels is velocity- area approach.
Farhad Akbarpour +2 more
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The aspect of the flow around a circular cylinder in a free surface water flow [PDF]
EPJ Web of Conferences, 2022 The purpose of this study is in collection of the basic data for development of the simple flow velocity measurement equipment. A 10mm diameter circular cylinder was inserted into the free surface stream, and investigation of the water surface height and
Yokoi Yoshifumi
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Effect of Flow Velocity on the Surface Fouling (Dept.M) [PDF]
MEJ. Mansoura Engineering Journal, 2020 La vitesse lente est l'un des paramètres les plus importants affectant le taux d'encrassement sur les surfaces de transfert de chaleur. Une étude expérimentale est réalisée pour étudier l'effet de la faible vitesse sur l'encrassement de surface pour le type d'encrassement particulaire.
Mohamed M. Awad +3 more
openaire +1 more source