20.500.12556/RUL-126448 Laser ranging measurements of turbulent water surfaces Laser ranging is a measurement method, applied in a wide range of applications. In this study, laser ranging is used to measure the height of turbulent water flows. Measurements were performed in three cross sections of a confluence where a tributary flow meets the main flow. Both flows exhibited high Reynolds and Froude numbers where the free-water surface profiles were turbulent, non-stationary and non-homogeneous. Measurements were taken using a commercial LIDAR and a high-speed camera. The high-speed camera was operated on the principle of laser triangulation, using only the illumination from the LIDAR laser beam. Since, no other state-of-the-art method for measuring instantaneous water surface profiles exists, LIDAR and triangulation methods could only be compared with each other. The results show good agreement between both methods for the average turbulent water profile and fair agreement for instantaneous profiles. Presented herein is an explanation of these results. hydrotechnics LIDAR laser triangulation free surface turbulence non-stationary surface high-speed camera hidrotehnika LIDAR laserska triangulacija prosta površina turbulenca nestacionarna površina hitra kamera true false true Angleški jezik Slovenski jezik Članek v reviji 2021-04-22 14:46:44 2021-04-22 14:46:45 2023-05-09 03:29:53 0000-00-00 00:00:00 2020 0 0 Str. 165-172 Vol. 81 May/Jun. 2020 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2022-06-01 626/627 0997-7546 10.1016/j.euromechflu.2020.02.001 9085793 Rak...-Laser_ranging_measurements_of_turbulent_water_surfaces.pdf Rak...-Laser_ranging_measurements_of_turbulent_water_surfaces.pdf 1 56D34E59B87AED4341EE8B5BDAB1BE84 d9794888e28db69e429bae8f4f8974b9e2fa063c8ef5f2bd404e7469d30ba298 e00e9033-ed75-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=168651 https://www.sciencedirect.com/science/article/pii/S0997754619301463 0 024b3368-c52b-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=143814 Fakulteta za gradbeništvo in geodezijo Fakulteta za strojništvo 0 0 0