Flow-3D Hydro is a CFD-focused variant of Flow-3D tailored for free-surface and hydrodynamic problems (rivers, dambreaks, levees, coastal flows). Modeling cracks in structures (e.g., levees, concrete spillways, dam faces) or fractures in porous media can be important for predicting seepage, internal erosion, and failure. Below is a concise, practical overview of how cracks are represented in Flow-3D Hydro, common issues users encounter, and a step-by-step approach to fixing crack-related modeling problems so simulations produce reliable results.

The core strength of Flow-3D has always been its TruVOF algorithm, and in the Hydro version, this is refined for fixed mesh scenarios.

Starting a simulation instantly with a massive hydrostatic load can shock the solver.