A review on methods for measurement of free water surface

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

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.

• Jezik: Angleški jezik
• Ključne besede: free water surface, measuring methods, laser scanning, high-speed imaging, two-phase flow, turbulent flow
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.02 - Pregledni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo ; FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: 18 str.
• Številčenje: Vol. 23, iss. 4, art.1842
• PID: 20.500.12556/RUL-146372
• UDK: 532:626/627
• ISSN pri članku: 1424-8220
• DOI: 10.3390/s23041842
• COBISS.SI-ID: 141173507
• Datum objave v RUL: 25.05.2023

Gradivo je del revije

• Naslov: Sensors
• Skrajšan naslov: Sensors
• Založnik: MDPI
• ISSN: 1424-8220
• COBISS.SI-ID: 10176278

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 25.05.2023

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Pregled metod za merjenje proste vodne površine
• Ključne besede: površina proste gladine, metode meritev, lasersko skeniranje, hitri zajem slik, dvofazni tok, turbulentni tok

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0401
• Naslov: Energetsko strojništvo

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0180
• Naslov: Vodarstvo in geotehnika: orodja in metode za analize in simulacije procesov ter razvoj tehnologij