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A numerical study of fluid flow in a vertical slot fishway with the smoothed particle hydrodynamics method
ID Novak, Gorazd (Author), ID Tafuni, Angelo (Author), ID Domínguez, José M. (Author), ID Četina, Matjaž (Author), ID Žagar, Dušan (Author)

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Abstract
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.

Language:English
Keywords:fish passages, vertical slot fishway, numerical model, SPH, fluid particles, artificial viscosity, DualSPHysics v4.4
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Publication status:Published
Publication version:Version of Record
Year:2019
Number of pages:23 str.
Numbering:Vol. 11, iss. 9, art. 1928
PID:20.500.12556/RUL-132780 This link opens in a new window
UDC:626/627
ISSN on article:2073-4441
DOI:10.3390/w11091928 This link opens in a new window
COBISS.SI-ID:8876641 This link opens in a new window
Publication date in RUL:03.11.2021
Views:534
Downloads:124
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Record is a part of a journal

Title:Water
Shortened title:Water
Publisher:Molecular Diversity Preservation International - MDPI
ISSN:2073-4441
COBISS.SI-ID:36731653 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:15.09.2019

Secondary language

Language:Slovenian
Keywords:ribje steze, 3D numerični model, metoda SPH, DualSPHysics v4.4

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P2-0180
Name:Vodarstvo in geotehnika: orodja in metode za analize in simulacije procesov ter razvoj tehnologij

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