Aras, your images have no length scale. Here, I measured it for you, it is 6 microns. Is that a significant dimension? What is the source of the STL file? Is the STL data computer generated from a model or is it scan data from a physical prototype? Even if the data is computer generated, when a physical prototype is made, I doubt it will be made to 6 micron tolerances.
In my videos and my replies, I mentioned that the Skin tool is not exact, it does a best fit of a B-spline surface to the STL vertices and faces. I showed you how to use the Deviation plot in SpaceClaim so you can see the magnitude of the error. Here is a plot which shows the deviation between the STL facets and the top tail surface is +0.02 mm to -0.06 mm. This is a small fraction of the 70 mm chord length and these numbers are 10 times larger than the dimension you are showing above.
Here is the bottom surface deviation:
You need to decide what an acceptable tolerance is for deviation from the STL facet to the surface. Maybe while I was making the solid, I did not zoom in carefully to pick the exact last vertex on the STL. You can be more careful to not miss the last vertex at the trailing edge.
As I mentioned before, if you want zero deviation from the STL, then mesh the STL directly as shown in the Fluent video.
I did not record a video while making this solid.
Using SpaceClaim, I created two planes parallel to the XY plane. Move the first plane to Z = 0.1 mm and the second one to Z = 29.9 mm. Draw a block of air between those planes. Use the Combine tool to subtract the SolidFilledWing from the block of air.
I also tried a block of air that is wider than the wing and SpaceClaim had no problem subtracting the wing from the block of air.
You are navigating away from the AIS Discovery experience