A weir is a barrier structure that regulates or closes off the flow of a watercourse. This means that a weir is also a dam structure. The inflatable weir shown here is a movable weir. Compared to conventional movable weirs, the inflatable weir has the advantage that its construction is simple and it has fairly low maintenance requirements.

The size of the model area is 38 m x 12.5 m (base area), polygon count of the model: 46,798, render engine Vray 4.0 Next.

On calculating with PhoenixFD

PhoenixFD is a fluid solver that is integrated directly into 3ds max via plug-in and provides fast and convincing results.

Dimensions of the computational grid: 38 m x 12.5 m x 6.7 m, number of grid elements: 18,328,320, determination of velocity (v), foam, splash, open discharge conditions (no build-up within the system).

Duration of animation ~35 seconds.

The 3D model was created as a supplement to the test series started in 2019 for various fluid solvers in 3ds max with PhoenixFD.

Further information can be found on the publications portal of the BAW (Bundesanstalt für Wasserbau – Federal Waterways Engineering and Research Institute):