Mesh import directly without using DiveMESH

fturkmen · May 20, 2021, 09:51

Dear Sir,

I want to use Reef3D solver but my geometry is very complex. So, I want to create flow domain using different mesh program such as Salome or OpenFoam - SnappyHexMesh. Then, I want to import it into reef3d. Is there any possibilities to do that?

Best Regards,

kamath · May 21, 2021, 02:52

Dear Furkan,
This is currently not possible.
You can however, import any stl of any complexity.
There are several mesh coarsening methods available to provide refined meshes around complex bodies.

valgrinda · May 28, 2021, 10:24

REEF3D's mesh is quite straightforward, as the immersed boundary is used. This is the reason why other mesh formats are not really needed. As Arun mentioned, you can either use STLs or the internal solid geometries. Also, for natural topography, bed levels can be interpolated from data points.

dangbaoloi · July 13, 2021, 05:47

Thanks Arun.
But how can we refine the mesh around the complex bodies as you mentioned.
Can you please explain it in detail?
Many thanks for the help.

valgrinda · July 13, 2021, 05:53

Hi Furkan,

have a look at the B101-B130 options in DIVEMesh. They are specifying the grid-stretching options. The mesh for REEF3D::CFD is a non-uniform rectilinear mesh with immersed boundaries for complex solid boundaries.

May 20, 2021, 09:51	Mesh import directly without using DiveMESH	#1
fturkmen New Member Furkan Türkmen Join Date: May 2021 Posts: 7 Rep Power: 4	Dear Sir, I want to use Reef3D solver but my geometry is very complex. So, I want to create flow domain using different mesh program such as Salome or OpenFoam - SnappyHexMesh. Then, I want to import it into reef3d. Is there any possibilities to do that? Best Regards, shaiashe and ali_b124 like this.

May 21, 2021, 02:52		#2
kamath Senior Member Arun Kamath Join Date: Nov 2014 Location: Trondheim, Norway Posts: 265 Rep Power: 13	Dear Furkan, This is currently not possible. You can however, import any stl of any complexity. There are several mesh coarsening methods available to provide refined meshes around complex bodies. fturkmen and dangbaoloi like this. __________________ Arun X years with REEF3D

May 28, 2021, 10:24		#3
valgrinda Super Moderator Hans Bihs Join Date: Jun 2009 Location: Trondheim, Norway Posts: 377 Rep Power: 17	REEF3D's mesh is quite straightforward, as the immersed boundary is used. This is the reason why other mesh formats are not really needed. As Arun mentioned, you can either use STLs or the internal solid geometries. Also, for natural topography, bed levels can be interpolated from data points. fturkmen likes this. __________________ Hans Bihs Team REEF3D www.reef3d.com

July 13, 2021, 05:53		#5
valgrinda Super Moderator Hans Bihs Join Date: Jun 2009 Location: Trondheim, Norway Posts: 377 Rep Power: 17	Hi Furkan, have a look at the B101-B130 options in DIVEMesh. They are specifying the grid-stretching options. The mesh for REEF3D::CFD is a non-uniform rectilinear mesh with immersed boundaries for complex solid boundaries. __________________ Hans Bihs Team REEF3D www.reef3d.com

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July 13, 2021, 05:47		#4
dangbaoloi New Member Loi Join Date: Jul 2021 Posts: 1 Rep Power: 0	Thanks Arun. But how can we refine the mesh around the complex bodies as you mentioned. Can you please explain it in detail? Many thanks for the help.