[GAMBIT] CHT:meshing help for 3D room

Bharatt · January 20, 2013, 08:01

i am simulating convective heat transfer inside the 3D closed room.for which i am using a cube room model, inside which there is a heat source. at the sides of the wall, bottom, there are two inlets and two outlets at the top. i don't have idea how to how to mesh. i will be very thankful if someone provides little hint.

thanks in advance

bharat

-mAx- · January 21, 2013, 06:40

is your outer cube already splitted from your inside cube (source)?

Bharatt · January 21, 2013, 07:16

Yes, i did that after going through some of the posts here.

P.S-is it correct to take inlet and outlet conditions, just the way i made, on the faces of the cube(as the are in 2D)?

-mAx- · January 21, 2013, 07:24

I check your model.
Nothing is connectd, and/or spliited
So:
-split volume 1 with volume 2
-split face 6 with face 15 and face 16
-split face 2 with face 13
-split face 1 and 14

Then you can (or not delete the volume inside your cube (source))
Once it is done, you can go and mesh as you want

Bharatt · January 21, 2013, 09:37

Thank you max-

i got the mesh, but i am facing problem while exporting the mesh to fluent, i am getting a WARN: boundary entity xxxx(for inlet and outlet) does not contain any valid entity........

P.S- i am generating volume mesh for source and room.

January 21, 2013, 06:40		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	is your outer cube already splitted from your inside cube (source)? __________________ In memory of my friend Hervé: CFD engineer & freerider

January 21, 2013, 07:16	Thank you for the reply	#3
Bharatt Member Bharat Join Date: Jul 2011 Location: Delhi, India Posts: 49 Rep Power: 14	Yes, i did that after going through some of the posts here. P.S-is it correct to take inlet and outlet conditions, just the way i made, on the faces of the cube(as the are in 2D)?

January 21, 2013, 07:24		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	I check your model. Nothing is connectd, and/or spliited So: -split volume 1 with volume 2 -split face 6 with face 15 and face 16 -split face 2 with face 13 -split face 1 and 14 Then you can (or not delete the volume inside your cube (source)) Once it is done, you can go and mesh as you want __________________ In memory of my friend Hervé: CFD engineer & freerider

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January 21, 2013, 09:37		#5
Bharatt Member Bharat Join Date: Jul 2011 Location: Delhi, India Posts: 49 Rep Power: 14	Thank you max- i got the mesh, but i am facing problem while exporting the mesh to fluent, i am getting a WARN: boundary entity xxxx(for inlet and outlet) does not contain any valid entity........ P.S- i am generating volume mesh for source and room.