Uploaded October 2025 | Updated September 2026, 1 week ago
Culverts can interfere with natural stream flow and pose obstacles for fish passage, often due to high water velocities, shallow flow depths, or outlets elevated above the streambed. 3D CFD modeling enables engineers to design or retrofit culverts to be more fish-friendly. In this FLOW-3D HYDRO example, a dual-barrel culvert features a cone fishway on one side and a flat-bottom slope on the other. CFD allows for precise adjustments to the fishway design, offering detailed insights into hydraulic performance to ensure it meets the specific needs of local fish species. Learn more at flow3d.com/hydro
Culverts can interfere with natural stream flow and pose obstacles for fish passage, often due to high water velocities, shallow flow depths, or outlets elevated above the streambed. 3D CFD modeling enables engineers to design or retrofit culverts to be more fish-friendly. In this FLOW-3D HYDRO example, a dual-barrel culvert features a cone fishway on one side and a flat-bottom slope on the other. CFD allows for precise adjustments to the fishway design, offering detailed insights into hydraulic performance to ensure it meets the specific needs of local fish species. Learn more at flow3d.com/hydro










