# STL file exported and import to CFD model/ inlet create

**URL:** <https://discourse.slicer.org/t/stl-file-exported-and-import-to-cfd-model-inlet-create/34572>\
**Category:** Development\
**Created:** [February 27, 2024, 3:35pm UTC](https://discourse.slicer.org/t/stl-file-exported-and-import-to-cfd-model-inlet-create/34572 "2024-02-27T15:35:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![D\_Dand](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/d_dand/32/69093_2.png) [@D\_Dand](https://discourse.slicer.org/u/D_Dand)\
**Post date:** [February 27, 2024, 3:35pm UTC](https://discourse.slicer.org/t/stl-file-exported-and-import-to-cfd-model-inlet-create/34572/1 "2024-02-27T15:35:31Z")

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Good morning everyone,

I have done the segmentation part of lower human airway. Now, I want to export it and then import to CFD model to simulate human airflow in the lower airway. However, when I export the model into stl file, and import it to spaceclaim for capping. The ansys spaceclaim cannot detect the whole on top of airway to cap. Has anyone done something like this before?  
Please advice how you cap your model and setup inlet?

Thank you very much!

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/c/ac31037f244653e5c16e51c043551ff32572a126.jpeg)

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**Author:** ![brain\_brews](https://avatars.discourse-cdn.com/v4/letter/b/bbe5ce/32.png) [@brain\_brews](https://discourse.slicer.org/u/brain_brews)\
**Post date:** [July 29, 2024, 6:15pm UTC](https://discourse.slicer.org/t/stl-file-exported-and-import-to-cfd-model-inlet-create/34572/2 "2024-07-29T18:15:48Z")

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Hi D\_Dand, did you figure out this issue? I am having this exact issue and unsure what to do. Please let me know how you approached this!

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**Author:** ![D\_Dand](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/d_dand/32/69093_2.png) [@D\_Dand](https://discourse.slicer.org/u/D_Dand)\
**Post date:** [July 29, 2024, 6:52pm UTC](https://discourse.slicer.org/t/stl-file-exported-and-import-to-cfd-model-inlet-create/34572/3 "2024-07-29T18:52:35Z")

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Hi,

Sadly, no. I will let you know if I get something.

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**Author:** ![brain\_brews](https://avatars.discourse-cdn.com/v4/letter/b/bbe5ce/32.png) [@brain\_brews](https://discourse.slicer.org/u/brain_brews)\
**Post date:** [July 29, 2024, 6:55pm UTC](https://discourse.slicer.org/t/stl-file-exported-and-import-to-cfd-model-inlet-create/34572/4 "2024-07-29T18:55:16Z")

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Hi! thanks for your quick reply. were you able to go from 3dslicer to fluent? I am trying to do that but keep encountering issues