A numerical study of fluid flow in a vertical slot fishway with the smoothed particle hydrodynamics method

Novak, Gorazd (avtor), Tafuni, Angelo (avtor), Domínguez, José M. (avtor), Četina, Matjaž (avtor), Žagar, Dušan (avtor)

Fishways have a great ecological importance as they help mitigate the interruptions of fish migration routes. In the present work, the novel DualSPHysics v4.4 solver, based on the smoothed particle hydrodynamics method (SPH), has been applied to perform three-dimensional (3-D) simulations of water flow in a vertical slot fishway (VSF). The model has been successfully calibrated against published field data of flow velocities that were measured with acoustic Doppler velocity probes. A state-of-the-art algorithm for the treatment of open boundary conditions using buffer layers has been applied to accurately reproduce discharges, water elevations, and average velocity profiles (longitudinal and transverse velocities) within the observed pool of the VSF. Results herein indicate that DualSPHysics can be an accurate tool for modeling turbulent subcritical free surface flows similar to those that occur in VSF. A novel relation between the number of fluid particles and the artificial viscosity coefficient has been formulated with a simple logarithmic fit.

• Jezik: Angleški jezik
• Ključne besede: fish passages, vertical slot fishway, numerical model, SPH, fluid particles, artificial viscosity, DualSPHysics v4.4
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2019
• Št. strani: 23 str.
• Številčenje: Vol. 11, iss. 9, art. 1928
• PID: 20.500.12556/RUL-132780
• UDK: 626/627
• ISSN pri članku: 2073-4441
• DOI: 10.3390/w11091928
• COBISS.SI-ID: 8876641
• Datum objave v RUL: 03.11.2021

Gradivo je del revije

• Naslov: Water
• Skrajšan naslov: Water
• Založnik: Molecular Diversity Preservation International - MDPI
• ISSN: 2073-4441
• COBISS.SI-ID: 36731653

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: 15.09.2019

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: ribje steze, 3D numerični model, metoda SPH, DualSPHysics v4.4

Projekti

• 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