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[ANSYS Meshing] problem in HEX-tet mesh generation in ICEM

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Old   October 22, 2012, 14:03
Unhappy problem in HEX-tet mesh generation in ICEM
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Himanshu Sharma
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HI,

i am attaching the geometry for which i have generated elementary mesh in icem but i want tet mesh on the surface and remaining region i want hex mesh. I am new to ICEM.
please help me by guiding the steps of generating a hybrid mesh and providing a link for and good ICEM tutorial .
thanx
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Old   October 22, 2012, 14:24
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steps for converting quad to tetra.
1- go to "edit mesh" tab, you find convert mesh icon there
2- select convert quad to tetra.
now you have to select only the quad in that surface this is how you will do it:
select only one quad, then use the filter "select all items attached... up to a curve". you will then have all the quad surrounded by a curve selected. middle mouse button that and you will get your tetra.
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New to ICEM CFD, try this document --> http://goo.gl/G2gkE
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Old   October 23, 2012, 06:52
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Hi Ali,

Thanks for the help ,I am unable to get good ICEM tutorial which include all the key ideas how to generate mesh using ICEM if you have any material about it or you know any site please do reply. and you can also mail to me at himanshu90sharma@gmail.com

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Old   October 23, 2012, 20:26
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have you got access to customer portal in ansys's website ?
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New to ICEM CFD, try this document --> http://goo.gl/G2gkE
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Old   October 24, 2012, 08:54
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i am a student at IIT using the non commercial student version of ansys.
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Old   October 24, 2012, 11:04
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Hi,

I have generated have generated this hexahedral mesh but due to transition in the geometry i am not able to control becoz i think i am not able to connect the vertex with the curve. please can you help me with the procedure doing it i have attached the block picture of the geom and i am unable attaching the ICEm file please help Becoz i am very new to ICEM.block_generated.JPG

hex_prelim.JPG
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Old   October 24, 2012, 14:57
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is there a blocking there ? can you share your project ? i'll take a look at it
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New to ICEM CFD, try this document --> http://goo.gl/G2gkE
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Old   October 24, 2012, 15:13
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Quote:
Originally Posted by diamondx View Post
is there a blocking there ? can you share your project ? i'll take a look at it
Is seems that there is blocking but he is generating mesh from compute mesh panel.
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Old   October 26, 2012, 08:04
Question MY geom.prj file
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Hi Ali,
i have attached my project icem file i am stucked in block genration for my geometry please have a look.........
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Old   October 26, 2012, 08:26
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attach tin and blk
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Old   October 26, 2012, 08:55
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hi far,

I have attached the .tin and .blk and prj file in folder.
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Old   October 26, 2012, 09:18
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Quote:
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attach tin and blk
Hi ,

Sir do you have any tutorial for iCEm bcoz i am new to it and unable to understand the software..my geometry is quite simple but its the toughest for me i am struggling alot...
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Old   October 26, 2012, 10:49
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good luck with your project
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Old   October 26, 2012, 11:03
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hi christoph thanx... . but please tell me how can i improve upon my skills in ICEM do u have any good tutorial...and if i want to add prism layer near the wall so what procedure i need to follow..... i have done some work also please see that i am attaching my jpegs but i am stucked again in how to remove the bad elements as you would see in the figure i have attached
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Old   October 26, 2012, 12:43
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No need to add prisms if you want all Hexa. See this one as well.
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Old   October 26, 2012, 13:56
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Ok. Here it is prism + tetra mesh. Very few clicks and done (less than one minute)





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Old   October 27, 2012, 14:09
Question unable to generate volume mesh
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hi,
how to convert this into Hex -volume mesh so that i can use this in the CFX solver i have genereted the mesh but while i am saving the file in .uns formate it showing me error again and again......i am stucked again.... so... please help again...!!!!
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Old   October 27, 2012, 14:24
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You are talking about HEXA meshing previously done!!!


1. Create inlet, outlet, and wall surfaces or whatever as deemed necessary. This is done on left pan and right click on part and then create part.

2. Dont forget to create the unstructured mesh by right click on the premesh and then create unstructured mesh.

3. Go to output panel and do following

a) select the solver ANSYS CFX
b) Do not set the boundary conditions
c) output the mesh

4. Open CFX pre

5. Make new case with general settings

6. Import mesh and in the import mesh panel choose the ICEM mesh (*.cfx, *.cfx5). Also choose the appropriate mesh units.
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Old   October 28, 2012, 02:54
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hi if i have time sent to you a tutorial . i am new like you in icem cfd .
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Old   October 28, 2012, 05:19
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You need tutorials on ICEM CFD? Some of them are sent through pm
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