3-D numerical study of a bottom ramp fish passage using smoothed particle hydrodynamics
ID Novak, Gorazd (Author), ID Domínguez, José M. (Author), ID Tafuni, Angelo (Author), ID Silva, Ana T. (Author), ID Pengal, Polona (Author), ID Četina, Matjaž (Author), ID Žagar, Dušan (Author)

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Worldwide, the overwhelming number of man-made barriers in fluvial systems has been identified as one of the major causes of the reported staggering average declines of migratory fish. Fish passages have been shown to help mitigate such problems. Close-to-nature types of fish passages, such as bottom ramps, bypass channels, and fish ramps can be used to minimize the impact of artificial steep drops (e.g., weirs) on the migration of aquatic fauna, especially in cases of low-head barriers. This study focuses on the characterization of the flow pattern in a bottom ramp. A 3-D numerical model based on the meshless smoothed particle hydrodynamics (SPH) method was successfully validated and then employed for the simulation of turbulent free-surface flow in a straight channel with complex geometry. The effects of bed roughness, channel slope, and flow rate were quantified in terms of flow depth, velocity fields, and area velocity ratios. During the study, several new tools were developed, leading to new functionalities in pre-processing, solver, and post-processing which increase the applicability of DualSPHysics in the field of eco-hydraulics.

Keywords:3D numerical model, SPH method, fish pass, fish passages, bottom ramp, smoothed particle hydrodynamics, DualSPHysics, fish migration
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
Number of pages:19 str.
Numbering:Vol. 13, iss. 11, art. 1595
PID:20.500.12556/RUL-127523 This link opens in a new window
ISSN on article:2073-4441
DOI:10.3390/w13111595 This link opens in a new window
COBISS.SI-ID:66775299 This link opens in a new window
Publication date in RUL:11.06.2021
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Record is a part of a journal

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


License:CC BY 4.0, Creative Commons Attribution 4.0 International
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:05.06.2021

Secondary language

Keywords:3D numerični model, metoda SPH, ribja steza


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

Funder:Other - Other funder or multiple funders
Funding programme:Government of Spain, Ministry of Economy and Competitiveness

Funder:Other - Other funder or multiple funders
Funding programme:Xunta de Galicia
Project number:ED431C 2017/64
Name:Programa de Consolidación e Estructuración de Unidades de Investigación Competitivas (Grupos de Referencia Competitiva)

Funder:EC - European Commission
Funding programme:European Regional Development Fund
Name:Programa de Consolidación e Estructuración de Unidades de Investigación Competitivas (Grupos de Referencia Competitiva)

Funder:Other - Other funder or multiple funders
Funding programme:Spanish government, Juan de la Cierva-incorporación
Project number:IJCI-2017-32592

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