Draping over curves

Hi there!

I'm pretty new to kangaroo, and i was trying out some draping of cloth over a group of curves.

I've tried to pipe these curves and input them into CollideMesh, then apply gravity to the draping surface. However, the surface falls right through these piped curves. I tried to increase the number of points on the surface, but grasshopper hung and i had to force close it in the end.

Does anyone have any idea how i can achieve this effect (see image below) otherwise?

Attached are the files i'm using. Thanks much!

Trying to drape the green surface on top of the black pipes