ONE- AND THREE-DIMENSIONAL MODELING OF A VERTICAL-SLOT FISHWAY

  • Camila Yuri Lira Umeda University Federal Mato Grosso do Sul
  • Guilherme de Lima University Federal Uberlândia, Minas Gerais, Brazil
  • Johannes Gérson Janzen University Federal Mato Grosso do Sul
  • Marcio Ricardo Salla University Federal Uberlândia, Minas Gerais, Brazil
Keywords: Vertical-slot fishway, numerical modeling, computational fluid dynamics, fish passage

Abstract

This paper compares the use of one-dimensional (1-D) and three-dimensional (3-D) numerical models to simulate the flow of a vertical-slot fishway. Prior to their application, the models are validated by comparing the predicted data with experimental data from a physical model. Then the numerical models are applied to calculate four critical hydraulic design parameters of vertical-slot fishways, i.e., flow speed, water depth, turbulent kinetic energy, and energy dissipation rate. Furthermore, the authors developed rating curves for flow rate and energy dissipation rate in terms of flow depth using data from the 1-D model. These curves have great utility for the operation of the vertical-slot fishway studied. The results indicate that 1-D modeling can be a useful tool for preliminary conservative design arrangements of vertical-slot fishways, and that 3-D modeling can be a useful tool to enable accurate representation of the critical hydraulic design parameters and selection of the most appropriate design.

Author Biographies

Camila Yuri Lira Umeda, University Federal Mato Grosso do Sul
Faculty of Environmental Engineering, Brazil
Guilherme de Lima, University Federal Uberlândia, Minas Gerais, Brazil
Faculty of Civil Engineering, Brazil
Johannes Gérson Janzen, University Federal Mato Grosso do Sul
Faculty of Environmental Engineering, Brazil
Marcio Ricardo Salla, University Federal Uberlândia, Minas Gerais, Brazil
Faculty of Civil Engineering, Brazil
Published
2017-05-21
Section
Articles