Question about Inputs
 

Hello, thanks for reading this. I have a bit of a interesting question I hoped you can help me with.

I'm working in constructing airway geometry, and I have a MATLAB code that constructs the first n generations of airway trees. However, something that I'm trying to do now is take that geometry and convert it into a mesh format.

What I have now is similar to a old-style Fluent MSH format, where I have two main sections: point coordinates and face connections.

So, my ascii MSH file for my face section consists of the Fluent MSH header, along with the connections (which are 2-point based lines instead of 3-point based surface triangles and 4-point based tetrahedrons). It looks like:

(0 "Faces:")
(13(0 1 1F 0))
(13(3 1 1F 3 0)(
2 1 2 0 0
2 2 3 0 0
2 2 4 0 0

with the point coordinate section pretty much identical.

My question is: what would be the best way to take this into ICEM CFD? I tried manually inputting some of the points and manually constructing cylinders, but is there an easier way to bring this in?

Once I bring this into ICEM CFD I can convert it to an IGES or STL, because what I ultimately want to do is merge this with STL's of the lungs and torso for COMSOL simulations. However, my initial problem of creating the geometry seems to confund me.

I appreciate any advice you can give, and thanks in advance.