[Dave442]

Hi all,

I have carried out an FEA analysis to investigate the deployment of a medical device in a blood vessel. I now wish to use CFD to investigate blood flow through this vessel. I was hoping to get some advice on how best to generate a CFD mesh of the volume enclosed by the vessel walls and the outer surfaces of the medical device. I have attached some images for clarity.

I can export the deformed vessel and medical device from my FEA package as either .STL meshes or as facetted .SAT geometries. Would it be a better approach to work on cleaning up the facetted geometries using a CAD package then using Booleans and whatnot to generate a solid model of the domain which I could then use to create a mesh? Or is it possible to generate a CFD mesh directly from .STL meshes?

I should mention that I have access to Ansys Workbench, Ansys CFX and Ansys ICEM (all v12.1). I am a complete novice as regards CFD and associated packages and, as such, any advice would be greatly appreciated.

Thanks in advance,
Dave