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Construction of water surface topography using LIDAR data
Rak, Gašper (Avtor), Hočevar, Marko (Avtor), Steinman, Franci (Avtor)

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Izvleček
Measurements of water surface topography are important for hydraulic structures, operation of hydropower plants as well as in the determination of water surface profiles in rivers, especially in the event of high waters. We therefore investigated the conditions at a confluence of two supercritical flows, where distinctly three-dimensional flow conditions of standing waves form, as well as an unsteady structure of the water flow in transversal and longitudinal directions. Due to the fast water surface dynamics and the phenomenon of foamed or twophase flow, the conventional measurement methods typically used in hydro engineering are not suitable for capturing complex water surface topography with high temporal and spatial resolution. Hence we wanted to verify the appropriateness of the laser scanning method for water surface topography measurements. This measurement method, which is considered less suitable or even useless for measurements of water body surfaces, was, coupled with an innovative approach, successfully used for water surface measurements of dynamic, turbulent, two-phase water flow. The acquisition of a point cloud with high temporal and spatial resolution allows for the construction of topography of intensive waving, which will also enable a topology analysis based on a phenomenological analysis of the relations between integral parameters of water flows and standing wave characteristics at the confluence.

Jezik:Angleški jezik
Ključne besede:laser scanner, water surface, topography, two-phase flow, confluence
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2018
Št. strani:Str. 555-565
Številčenje:Vol. 64, no. 9
UDK:626/627
ISSN pri članku:0039-2480
URN:URN:NBN:SI:doc-9XCVL2A1
DOI:10.5545/sv-jme.2017.4619 Povezava se odpre v novem oknu
COBISS.SI-ID:8451937 Povezava se odpre v novem oknu
Število ogledov:52
Število prenosov:56
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Gradivo je del revije

Naslov:Strojniški vestnik
Skrajšan naslov:Stroj. vestn.
Založnik:Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.]
ISSN:0039-2480
COBISS.SI-ID:762116 Povezava se odpre v novem oknu

Sekundarni jezik

Jezik:Slovenski jezik
Naslov:Izdelava topografije vodne gladine z uporabo LIDAR podatkov
Ključne besede:lasersko skeniranje, vodna površina, topografija, dvo-fazni tok, sotočje

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