[ICEM] (ICEM CFD) meshing over a cylinder

vmlxb6 · August 2, 2010, 13:45

Hello,

I am using ANSYS ICEM CFD 12.0 . I need to analyze the flow over a cylinder. What I am looking is for my mesh to be more refined around the cylinder and in the path of its wake.
I can make the area around the cylinder coarse by using Prism but what i don't know is how to make the path of its wake more refined ???

Using blocking gets my inner side of cylinder to be mesh also. It doesnt respect the cylinder boundary. It meshed trhu and thru.

tav98f · August 2, 2010, 13:52

You should look into "create mesh density." I think that it is designed for just such applications.

PSYMN · August 3, 2010, 23:09

If you want to do it with tetra prism, you should use a density box. Density boxes allow you to set the max size within themselves... You can find them under mesh (tab) => Create mesh Density. These are included in several tutorials, including the "fin" example where it is used to refine a wake.

Blocking would be great if you were using ICEM CFD Hexa... IF you get mesh right thru your cylinder, it is because you didn't delete the block that represents your cylinder. You should definitely go thru some tutorials before trying Hexa.

Simon

vmlxb6 · August 8, 2010, 05:05

Thanx Tim and Simon

arif.iut.09 · August 11, 2010, 14:51

hay everyone, i am very novice ansys cfx user. can any body help me out?i am doing a project on metal casting.can anyone tell me how to define a new material? I want to use aluminium alloy as my casting material.please i need a quick ans. Then again where can i get step by step instructions regarding ansys cfx.the help menu tutorials seem confusing to me. cheers.
ARIF

vmlxb6 · August 11, 2010, 15:34

Dude Arif you should create your own new thread !!!! It might help you.

PSYMN · August 11, 2010, 15:37

Arif, more specifically, a new thread in the CFX solver forum would be even better.

August 2, 2010, 13:45	(ICEM CFD) meshing over a cylinder	#1
vmlxb6 Senior Member Ugly Kid Joe Join Date: Aug 2010 Posts: 193 Rep Power: 16	Hello, I am using ANSYS ICEM CFD 12.0 . I need to analyze the flow over a cylinder. What I am looking is for my mesh to be more refined around the cylinder and in the path of its wake. I can make the area around the cylinder coarse by using Prism but what i don't know is how to make the path of its wake more refined ??? Using blocking gets my inner side of cylinder to be mesh also. It doesnt respect the cylinder boundary. It meshed trhu and thru.

August 3, 2010, 23:09	Density Boxes...	#3
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	If you want to do it with tetra prism, you should use a density box. Density boxes allow you to set the max size within themselves... You can find them under mesh (tab) => Create mesh Density. These are included in several tutorials, including the "fin" example where it is used to refine a wake. Blocking would be great if you were using ICEM CFD Hexa... IF you get mesh right thru your cylinder, it is because you didn't delete the block that represents your cylinder. You should definitely go thru some tutorials before trying Hexa. Simon

August 11, 2010, 14:51	new material	#5
arif.iut.09 New Member Join Date: Feb 2010 Posts: 5 Rep Power: 16	hay everyone, i am very novice ansys cfx user. can any body help me out?i am doing a project on metal casting.can anyone tell me how to define a new material? I want to use aluminium alloy as my casting material.please i need a quick ans. Then again where can i get step by step instructions regarding ansys cfx.the help menu tutorials seem confusing to me. cheers. ARIF

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August 2, 2010, 13:52		#2
tav98f Member Timothy Join Date: Apr 2010 Posts: 33 Rep Power: 16	You should look into "create mesh density." I think that it is designed for just such applications.

August 8, 2010, 05:05		#4
vmlxb6 Senior Member Ugly Kid Joe Join Date: Aug 2010 Posts: 193 Rep Power: 16	Thanx Tim and Simon

August 11, 2010, 15:34		#6
vmlxb6 Senior Member Ugly Kid Joe Join Date: Aug 2010 Posts: 193 Rep Power: 16	Dude Arif you should create your own new thread !!!! It might help you.

August 11, 2010, 15:37		#7
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Arif, more specifically, a new thread in the CFX solver forum would be even better.