The software calculates the temperature gradient within the solidifying mushy zone. Steep thermal gradients mean certain sections of the part are contracting much faster than adjacent sections, inducing high localized stresses. 2. Solidification Rate (R)
The research papers below discuss the simulation of hydraulic fracture (hydro-cracking) under thermal and mechanical stress, often using 3D thermo-hydro-mechanical (THM) coupling models. Key Research & Articles Numerical Simulation of Fracture Propagation in HDR
+-----------------------------------------------------------+ | FLOW-3D HYDRO SOLVER | +-----------------------------------------------------------+ | +-----------------------+-----------------------+ | | v v [ VOF METHOD ] [ FAVOR™ METHOD ] Tracks sharp free-surfaces & Embeds complex CAD geometries multiphase boundaries accurately into structured orthogonal grids flow 3d hydro crack hot
(Exodus-II format) for more detailed stress analysis in the solidified parts. Key Indicators
Isothermal Fracturing Hydro-Thermal Fracturing (Hot Rock) ┌──────────────────────────────┐ ┌──────────────────────────────┐ │ │ │ ┌─┐ │ │ │ │ ┌─┘ └─┐ │ ◄─────────┼──────────────┼───────────────┼──────────► ◄────────────┼─────┼───────────┼──────────► Length │ │ Length │ ┌─┘ └─┐ │ │ │ │ └─┐ ┌─┘ │ │ │ │ └─┐ ┌─┘ │ │ │ │ └─┘ │ └──────────────────────────────┘ └──────────────────────────────┘ Narrow Width | Planar Profile Wide Aperture | Branching & Roughness Aperture Widening The software calculates the temperature gradient within the
Previously, eliminating hot cracks involved trial-and-error physical experiments—adjusting laser power, scanning speeds, and pre-heat temperatures until the parts stopped failing. This method was incredibly resource-intensive, wasteful, and time-consuming.
Flow-3D Hydro uniquely solves these three simultaneously using its (Volume of Fluid) method coupled with Favot grid technology. Solidification Rate (R) The research papers below discuss
Let’s apply to a real-world scenario: A concrete spillway chute develops transverse cracks after a sudden gate opening releases deep, warm reservoir water following a cold night.
It is not just heat that moves the metal. The intense heat of a laser causes localized vaporization, generating recoil pressure that can push the liquid metal violently. Furthermore, surface tension variations caused by temperature differences ( Marangoni convection ) drive fluid flow within the pool. FLOW-3D couples these fluid dynamics with heat transfer to accurately predict the shape and stability of the melt pool. The Power of the FLOW-3D Environment
Flow-3D Hydro is a computational fluid dynamics (CFD) software specialized for simulating free-surface flows, sediment transport, and riverine hydraulics. Cracks appearing in numerical models (or in physical structures represented in simulations) can be a source of localized hot spots—areas of high velocity, pressure gradients, or turbulent energy—that affect erosion, structural integrity, and flow behavior. Below is a concise technical overview covering causes, diagnostics, and mitigation strategies related to "crack hot" issues in Flow-3D Hydro simulations.