The Gas core result shows the gas-polymer boundary throughout the part at the end of filling (fill analysis) or packing (filling + packing analysis).
This result is generated from a Gas-assisted Fill+Pack analysis using 3D analysis technology.
Using this result
The Gas core result is based on the Volume of Fluid method, where a value of 0 is assigned to nodes completely filled with polymer, and 1 is assigned to nodes completely filled with gas. To provide a clear visualization of the gas-polymer boundary as it intersects through the tetrahedral elements of the mesh, the default plot shows a single contour with the value 0.5.
The default plot is an animation with respect to time, but you can also create an XY, path or probe plot of this result.
As with other 3D results, we recommend the use of the Cutting plane tool 
to explore how much of the cross-section of the part in any given area has been cored out.
Things to look for
- Check that the gas has not penetrated to unwanted areas of the part.
- Check when the gas is penetrating. If it is penetrating too fast, you may need to vary the gas injection pressure and/or time.