[Dadou]

Originally Posted by wyldckat

Hi Tobi,

A quick glance to your post makes me remember an old thread about multi-regions, for which I left a link at the wiki page, namely section 3.2: http://openfoamwiki.net/index.php/Sn...-region_meshes

Best regards,
Bruno

Dear Bruno,

I am sorry if there are other threads about this topic.
I think I went throught all the discussions about this problem but could not find the answer and I am really confused.

So what I would like to do is presented in the picture "geometry". to do that I created a blockMesh and SLT ASCII of all faces (inlet, outlet, pump ...etc) BUT when I use snappyHexMesh I put the locationInMesh inside the "bassin". The results is presented in pictures "wrong1 and wrong1_withPump".

When I change the locationInMesh location and I put it inside the "pump" I get what is presented in picture named "wrong2".

I know that there is a lot of threads explaining how to do using some "chtMultiRegionFoam", but I don't seem to understand how it is working.

Can you please give me help here?!

Thank you

Regards,

Dadou

[Tobi]

Originally Posted by wyldckat

Greetings to all!

@Alessandro: Tobi once in a while renovates his website
Check his current tutorials for snappyHexMesh: http://www.holzmann-cfd.de/index.php/tutorials - with any luck, he made a variant of the tutorial that is missing...

Best regards,
Bruno

Yes I am doing it again - but at least the final one
I think I will regenerate the chtMultiRegion tutorial again and upload it.

(and also update the wiki snappyHexMesh side)

I only need a few time

@Dadou:

I think for your case you do not have to use a multi region domain, aren't you?

Regards
Tobi

[Dadou]

Originally Posted by Tobi

Yes I am doing it again - but at least the final one


@Dadou:

I think for your case you do not have to use a multi region domain, aren't you?

Regards
Tobi

I think I do because I cannont have the pump meshed without a big blockMesh.
For now I have a blockMesh with the same height as the pump just to keep the pump and outlet. Because if I do a small blockMesh the snappyHexMesh will get rid of the rest of the pump (that is not inside the blockMesh)

What should I do ?!

Thanks Tobi

Dadou

[Tobi]

Originally Posted by Dadou

I think I do because I cannont have the pump meshed without a big blockMesh.
For now I have a blockMesh with the same height as the pump just to keep the pump and outlet. Because if I do a small blockMesh the snappyHexMesh will get rid of the rest of the pump (that is not inside the blockMesh)

What should I do ?!

Thanks Tobi

Dadou

Hi,

you mix up something. Multi region meshing is for heat transfer (multi regions, like air, water, other fluids, solids) or meshes that are not connected at all (fluid domain is separated... e.g. two parallel pipes not connected but you have only one fluid and maybe you connect outlet_solid1 to the inlet_solid2 with some bc). You should only make one mesh. Can you publish your STL-files or your case so that I can check it out and give you a solution.

Anyway, maybe I miss understand what you are wanna do

[Dadou]

Originally Posted by Tobi

Hi,

you mix up something. Multi region meshing is for heat transfer (multi regions, like air, water, other fluids, solids) or meshes that are not connected at all (fluid domain is separated... e.g. two parallel pipes not connected but you have only one fluid and maybe you connect outlet_solid1 to the inlet_solid2 with some bc). You should only make one mesh. Can you publish your STL-files or your case so that I can check it out and give you a solution.

Anyway, maybe I miss understand what you are wanna do

Hi,

Well I think I miss understand what multi region was.
Anyway you can find my stl and blockmesh attached

You have to know that in my blockMesh there is two blocks but I only one the first of them, I added the second because i couldn't mesh the extra pump without it.
Thank you

[Tobi]

@bruno,

maybe its possible to move the posts which are not corresponding to that thread into a other one...


@dadou:

in the attachment you find the file.
Following steps to do

blockMesh
snappyHexMesh
paraview --data=paraview    //or paraFoam, or paraview and load the paraview.foam file

Case is available here: http://www.holzmann-cfd.de/forumCases/meshing.tar.gz

[Dadou]

Originally Posted by Tobi

@bruno,

maybe its possible to move the posts which are not corresponding to that thread into a other one...


@dadou:

in the attachment you find the file.
Following steps to do

blockMesh
snappyHexMesh
paraview --data=paraview    //or paraFoam, or paraview and load the paraview.foam file

Case is available here: http://www.holzmann-cfd.de/forumCases/meshing.tar.gz

Dear Toby,

I am so thankful.
Just one question how did you create regionSTL???!! I am trying to do my own

Thank you again

Dadou

[wyldckat]

Greetings to all!

Originally Posted by Tobi

@bruno,

maybe its possible to move the posts which are not corresponding to that thread into a other one...

Done. The posts above related to Dadou's questions on this topic are now located here: http://www.cfd-online.com/Forums/ope...ump-basin.html

Originally Posted by Dadou

Just one question how did you create regionSTL???!!

I suggest you try using Blender along with SwiftSnap:

• http://openfoamwiki.net/index.php/Category:Blender
• http://openfoamwiki.net/index.php/Contrib/SwiftSnap

Best regards,
Bruno

[Tobi]

Hi, i create single stl with Salome and put them together with a own python script.