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[snappyHexMesh] mesh generating for locally sharp geometry

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Old   May 7, 2020, 10:43
Default mesh generating for locally sharp geometry
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niewiemnic
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https://drive.google.com/file/d/1xeK...ew?usp=sharing

hello,

you can see the geometry in the link.

There is always problem during addLayer cuz of the serration at the trailing edge of profile. Can anybody give me some hints?
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Old   May 7, 2020, 17:48
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>> addLayer - sharp edges
>> Can anybody give me some hints?

Give up, or have a look at the guide (may be a useful setting you can find for that = https://www.openfoam.com/documentati...sh-layers.html) (ensure the surface mesh (e.g. STL file) is very fine.)
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Old   May 10, 2020, 15:25
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Quote:
Originally Posted by HPE View Post
>> addLayer - sharp edges
>> Can anybody give me some hints?

https://www.openfoam.com/documentati...sh-layers.html)

https://drive.google.com/file/d/1sbT...ew?usp=sharing

I read the link and set snappyHexMeshDict again, but still there are no layers at the trailing edge, even I am meshing a normal blade without serration...

Does anybody really dont have any experience for this problem?

Last edited by spalartallmaras; May 10, 2020 at 22:40.
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Old   May 12, 2020, 15:05
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I gave up to use snappyHexMesh and will use cfMesh which is much more simple.
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Old   May 12, 2020, 15:08
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Hi,

- I regret my remark. But my remark was limited to the cases where a user needs a very good quality boundary layer mesh. Otherwise snappyHexMesh is very powerful, and easy to use.
- "cfMesh" is not easier or more powerful with its current state than snappyHexMesh. Also, the open-source cfMesh is not being updated - or not supported any more since cfMesh group decided to go forward in another direction (cfMesh+).

Hope it helps.
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