[Albrt]

I am a beginner in using Fluent. I would like to see the contour (such as "velocity magnitude") of the airflow of nasal cavity.

postprocessing -> create -> isosurface -> choose mesh -> create new corordinate -> from surface (interior air & wall) -> from zone (air)

However, when I try to create a new isosurface, the contour of the new surface is a mesh structure rather than a filled picture (and I did select "filled")

Here is a short clip of me doing these steps, this case is from my teacher and he already create several isosurfaces. But when I want to create a new isosurface, I can not create a isosurface without mesh.

https://photos.app.goo.gl/NRopYSw2OQMJlxoq1

Thanks