In the past, cutting or filling holes in surfaces with CFD-GEOM required a two step process; 1) pick the surface 2) pick the closed set of curves that forms the hole.  Not a bad process but in the case of having to cut with multiple holes, it was quite inefficient since you could only cut one hole at a time.  Now you can handle hundreds of holes with a similar two step process; 1) pick the surface, 2) pick all curves or edges that may form holes. CFD-GEOM will automatically determine the closed sets of curves that form holes and complete the hole cutting/filling process. Below is an example with the Cut Hole(s) tool.

Figure 1.  Cut Hole(s) tool in CFD-GEOM
 

Figure 2.  Geometry before cutting holes	Figure 3.  Geometry after cutting holes

If you have any questions about this feature or would like us to discuss some other topic in the future, please let us know.

Regards,
ESI CFD Support Team