Air Entrapment

The air entrapment model in FLOW-3D CAST is used to estimate the amount of entrained air occurring in metal casting systems, such as gravity-poured casting processes. It is based on simple physical mechanisms, which means it can also be used to estimate the amount of entrained air occurring in other metal casting systems, such as high pressure die casting processes. Recent additions of even more physical details in the model allow entrained air, which is assumed to be in the form of bubbles, to be modeled as rising in the surrounding liquid metal because of buoyancy forces and even leaving the liquid if it reaches a free surface.

Customer Examples

Littler Diecast Co.

A support arm cast in A380
A support arm cast in A380, colored by air entrainment. Courtesy of Littler Diecast Co.

Deco Products

4 simulation cases of the Caster Wheel Leg part
4 simulation cases of the Caster Wheel Leg part. These parts are made of Zinc alloy #5. Courtesy of Deco Products.

Shiloh Industries

A front gear housing, 380 die cast alloy
A front gear housing, 380 die cast alloy, colored by percent of entrained air. Courtesy of Shiloh Industries.

For more information about this model, download the FLOW-3D Report on Air Entrainment.