Uploaded December 2025 | Updated September 2026, 1 week ago

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Fish passage structures at weirs must accommodate the swimming capabilities and hydraulic preferences of target fish species to ensure successful upstream migration. This FLOW-3D HYDRO simulation demonstrates a vertical slot fishway design at a weir, identifying key velocity zones that determine passage suitability for different species. The software captures complex flow patterns, turbulence characteristics, and velocity distributions that affect fish passage success. CFD modeling helps engineers optimize fishway geometry to meet hydraulic requirements for all target species while maintaining passage efficiency. Learn more at flow3d.com/fish-passage-solutions