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[snappyHexMesh] Sharp edges not being refined properly |
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#1 |
New Member
Eli Baldwin
Join Date: Aug 2013
Posts: 9
Rep Power: 13 ![]() |
Hello,
I'm new to snappyHexMesh and I've read through the snappy user guide as well as all relevant cfd-online posts. I am trying to make a mesh for a two nozzle impinging spray. The mesh will include one of the nozzles and a symmetric boundary on the plane where the jets collide. There is a second symmetric plane through the nozzle to minimize cell count. For now I am working with a single refinement cylinder of level 4 around the nozzle. I am using explicit edge / feature snapping with surfaceFeatureExtract. The two primary problems that I am observing are, 1. Rounding of some sharp edges 2. Disruption of the symmetric plane Attached are some screenshots of the current mesh snappyHexMesh is generating. There is a refinement cylinder with a refinement level of 4 around the nozzle. The snappyHexMeshDict is also attached. Any help is welcome! Thanks, Eli Last edited by ebaldwin; September 10, 2013 at 16:38. |
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#2 |
Senior Member
Artur
Join Date: May 2013
Location: Southampton, UK
Posts: 372
Rep Power: 20 ![]() |
I must say that edge problem looks like nothing I've seen before. Have you tried previewing the extracted feature lines and checking that they are correct?
(use Code:
surfaceFeatureConvert constant/triSurface/ImpingingJet0.eMesh ImpingingJet0.obj |
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#3 |
New Member
Eli Baldwin
Join Date: Aug 2013
Posts: 9
Rep Power: 13 ![]() |
Yes, the extracted lines look to be right on.
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#4 |
Senior Member
Artur
Join Date: May 2013
Location: Southampton, UK
Posts: 372
Rep Power: 20 ![]() |
Hmmm.. Any chance of you uploading your geometry then?
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Tags |
snappyhexmesh, surfacefeatureextract |
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