Dam Spillway Example in FLOW-3D HYDRO @flow3d

Uploaded June 2026 | Updated September 2026, 1 week ago

FLOW-3D HYDRO is widely adopted across the dams industry for its powerful ability to simulate complex free-surface flow conditions with accuracy and efficiency. When modelling real-world terrain, users can seamlessly import raster datasets (.tif or .asc) or LandXML files, as demonstrated in this spillway example. With its flexible and efficient meshing approach, FLOW-3D HYDRO enables rapid design iteration. This allows engineers to update and swap geometry files without the need to completely re-mesh the model each time, significantly streamlining the design and optimization process. Learn more at flow3d.com/products/flow-3d-hydro/dams-and-spillways

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$Air Entrainment at a Labyrinth Spillway | FLOW-3D HYDRO This example of a labyrinth weir spillway illustrates FLOW-3D HYDROs air entrainment physics in a one-fluid volume of fluid model. The air entrainment physics estimate the rate at which gas (represented by void regions) is entrained into the flow using a balance of stabilizing forces (gravity and surface tension) and destabilizing forces (turbulence). Although the primary focus of the model is to compute the air entrainment resulting from turbulent disturbances at a free surface, the model also contains logic for handling entrainment resulting from laminar jets impinging on a free surface. In this video, the fluid is colored by the entrained air volume fraction calculated by the air entrainment physics. Learn more about FLOW-3D HYDRO, an industry leader in free-surface flow modeling and is used by dam professionals to address a wide range of design problems. https://www.flow3d.com/products/flow-3d-hydro/dams-and-spillways/$

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