: The conditions during hydro-cracking are extreme, requiring robust models that can handle high pressures and possible thermal effects.

Velocity vectors, Turbulent Kinetic Energy (TKE), Fluid Temp Determines local convective heat flux on the wall. Fourier's Law of Heat Conduction Internal 3D Solid Temperature Fields Defines the spatial thermal gradient ( ) within the asset.

Simulating "hot" hydraulic cracks requires a model that can handle the interplay between fluid pressure, rock deformation, and thermal stress. Fluid-Structure Interaction (FSI):

This is the speed at which the solid-liquid interface moves. High solidification rates combined with complex alloy chemistry often lead to solute segregation, further widening the temperature range where the metal is vulnerable. 3. Cooling Time (Δ t)

In the high-stakes world of advanced manufacturing and materials science, (often referred to as solidification cracking) is a persistent and costly defect. It occurs during high-energy manufacturing processes like laser welding , directed energy deposition (DED) , and laser powder-bed fusion (LPBF) . When metals cool rapidly from their liquid states, tensile stresses within the solidifying microstructure can literally tear the metal apart before it finishes solidifying.

While FLOW-3D HYDRO does not include native finite element (FE) stress analysis, it excels in modeling flow effects through cracks and openings. Engineers can:

| Model Type | Purpose | Use Cases | |------------|---------|-----------| | | Directly models phase change from liquid to vapor; vapor voids form, collapse, and interact with flow | Valves, gates, pumps, spillways, propellers | | Passive Cavitation Model | Tracks bubbles as dispersed phase without forming voids | Brief cavitation events where secondary effects matter | | Cavitation Potential Model | Diagnostic tool flags regions where pressure falls below vapor pressure; low computational cost | Early design screening, parametric studies |

For engineers new to FLOW-3D HYDRO — or experienced users looking to deepen their cavitation modeling skills — Flow Science offers a comprehensive range of training and support resources:

⚠️ If HYDRO lacks built-in thermal stress, use the option under Advanced Physics.

In a FLOW-3D HYDRO simulation, water flows through a butterfly valve, with cavitation occurring downstream. The Active Cavitation Model captures vapor void formation and real-time tracking, revealing pressure distribution, velocity fields, and how voids interact with the flow.

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