Flow 3d Hydro Crack Top -

We ran a comparative simulation in Flow-3D Hydro to assess a 20mm high crack at the crest of a high-head spillway (Velocity = 15 m/s).

Conclusion: The "crack top" turned a standard spillway into a high-maintenance liability. Flow-3D Hydro quantified the risk before any water flowed. flow 3d hydro crack top

In 2021, a team studying aging spillways in the southeastern US used FLOW-3D HYDRO to assess a "top crack" scenario after a near-overtopping event. Their model showed that even a 2 mm crack at the crest transmitted over 80 kPa of water pressure 0.5 m below the surface—enough to initiate secondary cracking in weathered concrete. The result? A prioritized repair schedule before the next flood season. We ran a comparative simulation in Flow-3D Hydro

  • Time step: satisfy CFL for fluid and stability for solid dynamic response. Use adaptive time stepping if possible.
  • If fracture propagation is fast, ensure time step resolves crack speed (recommend: time step such that crack advances less than one element per step).

    • Perhaps the most critical feature. Flow-3D Hydro includes a cavitation model that predicts the growth and collapse of vapor bubbles. Conclusion: The "crack top" turned a standard spillway