[snappyHexMesh] SnappyHexMesh for refining the patch from the background mesh

saugatshr4 · February 16, 2022, 00:57

Hello,

I was trying to find a way to refine the patches using snappyHexMesh I had created using blockMesh? I can do it for an external stl file but have been struggling with this.

Can you please help me?

Thank you in advance.

Regards,
Saugat

ghastbug · February 19, 2022, 13:52

I have not done it, but I have two ideas:
1- Make a .stl with named faces. Define their region names in geometry, and use surface refinement on them. The faces are surfaces, and you can make them coincide with your blockMesh patches

2- use a searchablebox geometry, overlap it over your whole patch, and use refinementregion there.

saugatshr4 · February 20, 2022, 22:21

Thank You ghastbug!

I see that I can make it work from the second suggestion.

However, it is only a workaround. I still am trying to figure out how to select the patches for it to meshed around from refinement surfaces.

Thank You.

February 16, 2022, 00:57	SnappyHexMesh for refining the patch from the background mesh	#1
saugatshr4 New Member Saugat Shrestha Join Date: Dec 2019 Location: Thailand Posts: 27 Rep Power: 6	Hello, I was trying to find a way to refine the patches using snappyHexMesh I had created using blockMesh? I can do it for an external stl file but have been struggling with this. Can you please help me? Thank you in advance. Regards, Saugat

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February 19, 2022, 13:52		#2
ghastbug Member Join Date: Mar 2018 Posts: 33 Rep Power: 8	I have not done it, but I have two ideas: 1- Make a .stl with named faces. Define their region names in geometry, and use surface refinement on them. The faces are surfaces, and you can make them coincide with your blockMesh patches 2- use a searchablebox geometry, overlap it over your whole patch, and use refinementregion there.

February 20, 2022, 22:21		#3
saugatshr4 New Member Saugat Shrestha Join Date: Dec 2019 Location: Thailand Posts: 27 Rep Power: 6	Thank You ghastbug! I see that I can make it work from the second suggestion. However, it is only a workaround. I still am trying to figure out how to select the patches for it to meshed around from refinement surfaces. Thank You.