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A review on methods for measurement of free water surfaceRak, Gašper ...Turbulent free-surface flows are encountered in several engineering applications and are typically characterized by the entrainment of air bubbles due to intense mixing and surface deformation. The ... resulting complex multiphase structure of the air–water interface presents a challenge in precise and reliable measurements of the free-water-surface topography. Conventional methods by manometers, wave probes, point gauges or electromagnetic/ultrasonic devices are proven and reliable, but also time-consuming, with limited accuracy and are mostly intrusive. Accurate spatial and temporal measurements of complex three-dimensional free-surface flows in natural and man-made hydraulic structures are only viable by high-resolution non-contact methods, namely, LIDAR-based laser scanning, photogrammetric reconstruction from cameras with overlapping field of view, or laser triangulation that combines laser ranging with high-speed imaging data. In the absence of seeding particles and optical calibration targets, sufficient flow aeration is essential for the operation of both laser- and photogrammetry-based methods, with local aeration properties significantly affecting the measurement uncertainty of laser-based methods.Source: Sensors [Elektronski vir]. - ISSN 1424-8220 (Vol. 23, iss. 4 (1842), Feb. 2023, Str. 1-18)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 141173507
Author
Rak, Gašper |
Hočevar, Marko, strojnik, 1972- |
Kolbl Repinc, Sabina, sanitarno inženirstvo, 1982- |
Novak, Lovrenc, strojnik |
Bizjan, Benjamin
Topics
površina proste gladine |
metode meritev |
lasersko skeniranje |
hitri zajem slik |
dvofazni tok |
turbulentni tok |
free water surface |
measuring methods |
laser scanning |
high-speed imaging |
two-phase flow |
turbulent flow
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Database name | Field | Year |
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Rak, Gašper | 29190 |
Hočevar, Marko, strojnik, 1972- | 18836 |
Kolbl Repinc, Sabina, sanitarno inženirstvo, 1982- | 34230 |
Novak, Lovrenc, strojnik | 22241 |
Bizjan, Benjamin | 35646 |
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