zonal hybrid mesh

October 14, 1999, 19:51

Dear Sir:

Can you give me any technical information or reference about the "zonal hybrid mesh"? Most CFD packages, include Fluent and Start-CD, are now claim to be able to handle such mesh system. The modelling of air-fuel system in intake port of combustion engine is a typical application of such technique. Thanks

M . Tu

October 21, 1999, 10:10

A "zonal hybrid mesh" is one in which one or more regions contain one type of element (cell), and one or more other regions contain another type of element. For example, you could have a region with hexahedral cells, another region with tetrahedral cells, and a layer of pyramids joining the two. This allows you to create hex cells where it is easy to do so (e.g., to maximize flow alignment and minimize cell count), and tet cells where the geometry is complicated. Thus, it is a good balance between cell count, solution accuracy, and meshing effort.

abenab01 · May 16, 2020, 05:42

Hello,
Do you know if it's possible to use a hybrid mesh in Fluent ?
Thank you

MikeBravo · May 16, 2020, 08:11

Wow, reviving a 21-year-old post here...
Yes Fluent can do hybrid meshes. It can do tet, hex, and polyhedral elements now.

abenab01 · May 16, 2020, 09:16

Thank you for your replay

Do you have a tutorial or a document that explains the method?
In fact, I have a problem with three zones or I want to make a type of mesh in each zone?
Thank you

MikeBravo · May 16, 2020, 12:19

You should look at the ANSYS meshing tutorials under Help/Training and Tutorials and on the ANSYS Customer Portal.

October 14, 1999, 19:51	zonal hybrid mesh	#1
Maolin Tu Guest Posts: n/a	Dear Sir: Can you give me any technical information or reference about the "zonal hybrid mesh"? Most CFD packages, include Fluent and Start-CD, are now claim to be able to handle such mesh system. The modelling of air-fuel system in intake port of combustion engine is a typical application of such technique. Thanks M . Tu

October 21, 1999, 10:10	Re: zonal hybrid mesh	#2
Scott Gilmore Guest Posts: n/a	A "zonal hybrid mesh" is one in which one or more regions contain one type of element (cell), and one or more other regions contain another type of element. For example, you could have a region with hexahedral cells, another region with tetrahedral cells, and a layer of pyramids joining the two. This allows you to create hex cells where it is easy to do so (e.g., to maximize flow alignment and minimize cell count), and tet cells where the geometry is complicated. Thus, it is a good balance between cell count, solution accuracy, and meshing effort.

May 16, 2020, 05:42	Hybrid mesh in Ansys Fluent	#3
abenab01 New Member benabed Join Date: Mar 2019 Posts: 3 Rep Power: 0	Hello, Do you know if it's possible to use a hybrid mesh in Fluent ? Thank you

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May 16, 2020, 08:11		#4
MikeBravo New Member Mike Join Date: Jan 2018 Posts: 29 Blog Entries: 6 Rep Power: 8	Wow, reviving a 21-year-old post here... Yes Fluent can do hybrid meshes. It can do tet, hex, and polyhedral elements now.

May 16, 2020, 09:16		#5
abenab01 New Member benabed Join Date: Mar 2019 Posts: 3 Rep Power: 0	Thank you for your replay Do you have a tutorial or a document that explains the method? In fact, I have a problem with three zones or I want to make a type of mesh in each zone? Thank you

May 16, 2020, 12:19		#6
MikeBravo New Member Mike Join Date: Jan 2018 Posts: 29 Blog Entries: 6 Rep Power: 8	You should look at the ANSYS meshing tutorials under Help/Training and Tutorials and on the ANSYS Customer Portal.