<abstract xmlns="http://www.w3.org/1999/xhtml"><p> This paper presents the results of an experimental and numerical study of a vertical slot fishway (VSF). A 2-D depth-averaged shallow water numerical model PCFLOW2D coupled with three different turbulent models (constant eddy viscosity, Smagorinsky and k - ε) was used. A detailed analysis of numerical parameters needed for a correct simulation of the phenomenon was carried out. Besides the velocity field, attention was paid to important hydraulic parameters such as maximum velocity in the slot region and energy dissipation rate ε in order to evaluate the performance of VSF. A scaled physical hydraulic model was built to ensure reliable experimental data for the validation of the numerical model. Simulations of variant configurations of VSF showed that even small changes in geometry can produce more fishfriendly flow characteristics in pools. The present study indicates that the PCFLOW2D program is an appropriate tool to meet the main demands of the VSF design.</p></abstract>

This paper presents the results of an experimental and numerical study of a vertical slot fishway (VSF). A 2-D depth-averaged shallow water numerical model PCFLOW2D coupled with three different turbulent models (constant eddy viscosity, Smagorinsky and k - ε) was used. A detailed analysis of numerical parameters needed for a correct simulation of the phenomenon was carried out. Besides the velocity field, attention was paid to important hydraulic parameters such as maximum velocity in the slot region and energy dissipation rate ε in order to evaluate the performance of VSF. A scaled physical hydraulic model was built to ensure reliable experimental data for the validation of the numerical model. Simulations of variant configurations of VSF showed that even small changes in geometry can produce more fishfriendly flow characteristics in pools. The present study indicates that the PCFLOW2D program is an appropriate tool to meet the main demands of the VSF design.

Numerical and physical model study of a vertical slot fishway

Institute for Hydraulic Research, Hajdrihova 28, 1000, Ljubljana, Slovenia.

Institute for Hydraulic Research, Hajdrihova 28, 1000, Ljubljana, Slovenia

Institute for Hydraulic Research, Hajdrihova 28, 1000, Ljubljana, Slovenia. E-mails:

Chair of Fluid Mechanics with Laboratory, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Hajdrihova 28, 1000,

Journal of Hydrology and Hydromechanics

{"article-title":"Numerical and physical model study of a vertical slot fishway"}

This paper presents the results of an experimental and numerical study of a vertical slot fishway (VSF). A 2-D depth-averaged shallow water numerical model...

Numerical and physical model study of a vertical slot fishway

Pubblicato online: 04 apr 2014

Pagine: 150 - 159

DOI: https://doi.org/10.2478/johh-2014-0013

Parole chiave
Eddy viscosity, Hydraulic model, Numerical diffusion, Numerical model PCFLOW2D, Turbulence model, Vertical slot fishway

This content is open access.

Numerical and physical model study of a vertical slot fishway

Pubblicato online: 04 apr 2014

Pagine: 150 - 159

DOI: https://doi.org/10.2478/johh-2014-0013

Parole chiaveEddy viscosity, Hydraulic model, Numerical diffusion, Numerical model PCFLOW2D, Turbulence model, Vertical slot fishway

This content is open access.

Parole chiave
Eddy viscosity, Hydraulic model, Numerical diffusion, Numerical model PCFLOW2D, Turbulence model, Vertical slot fishway