Water surface topology of supercritical junction flow

Rak, Gašper (avtor), Hočevar, Marko (avtor), Steinman, Franci (avtor)

The complexity of flow conditions at junctions amplifies significantly with supercritical flow. It is a pronounced three-dimensional two-phased flow phenomenon, where standing waves with non-stationary water surface are formed. To analyse the hydrodynamic conditions at an asymmetric right-angled junction with incoming supercritical flows at Froude numbers between 2 and 12, an experimental approach was used. For a phenomenological determination of the relations between the integral parameters of incoming flows and the characteristics of standing waves at the junction area, water surface topographies for 168 scenarios at the junction were measured using non-intrusive measurement techniques. The new, phenomenologically derived equations allow for determination of location, height and extent of the main standing waves at the junction. Research results give important information on the processes and their magnitude for engineering applications.

• Jezik: Angleški jezik
• Ključne besede: junction, hydraulic experimentation, standing wave, supercritical flow, flow patterns
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2019
• Št. strani: Str. 163-170
• Številčenje: Vol. 67, iss. 2
• PID: 20.500.12556/RUL-126365
• UDK: 621.22-821:626/627
• ISSN pri članku: 0042-790X
• DOI: 10.2478/johh-2018-0042
• COBISS.SI-ID: 8671841
• Datum objave v RUL: 19.04.2021

Gradivo je del revije

• Naslov: Journal of Hydrology and Hydromechanics
• Skrajšan naslov: J. Hydrol. Hydromech.
• Založnik: Institute of Hydrology SAS, Institute of Hydrodynamics AS CR, v. v. i.
• ISSN: 0042-790X
• COBISS.SI-ID: 863585

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
• Začetek licenciranja: 19.04.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: gradbeništvo, vodarstvo, hidrotehnika, sotočje, hidravlične raziskave, stoječe valovanje, deroči tok, vzorci vodnega toka