Gašper Rak (Avtor), Marko Hočevar (Avtor), Sabina Kolbl (Avtor), Lovrenc Novak (Avtor), Benjamin Bizjan (Avtor)

Povzetek

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.

Ključne besede

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;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.02 - Pregledni znanstveni članek
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
UDK: 532:626/627
COBISS: 141173507 Povezava se bo odprla v novem oknu
ISSN: 1424-8220
Št. ogledov: 1015
Št. prenosov: 131
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarni naslov: Pregled metod za merjenje proste vodne površine
Sekundarne ključne besede: površina proste gladine;metode meritev;lasersko skeniranje;hitri zajem slik;dvofazni tok;turbulentni tok;
Vrsta dela (COBISS): Članek v reviji
Strani: Str. 1-18
Letnik: ǂVol. ǂ23
Zvezek: ǂiss. ǂ4 (1842)
Čas izdaje: Feb. 2023
DOI: 10.3390/s23041842
ID: 19026817