Mesh creation Help

joaorp · February 4, 2010, 09:23

Greetings everyone,

I'm posting because I've been trying to recreate a mesh with these kind of features as shown in the first picture,

Meaning
Polyheadral mesh with prism layers near the top surface on the side surfaces.

But what I can't reproduce is the red areas marked in the picture.

Can anyone explain me how I can get those perfect rectangles in the both top surface and "inlet" surface?

What happens when I try to do using:
Polyheadral mesher
Prism Layers Mesher
Surface Remesher

I get the red marked areas some weird polyheadral meshes or at least triangles, which is not what I want. I need those perfect rectangles on the surface.

If anyone could please explain me how to do this, I'd greatly appreciate it

EDIT:
I should mention that I did the geometry in Pro E, saved it in .stp file, and imported it as surface mesh.
Much appreciate it.

karthickeyan · February 5, 2010, 04:36

i think u should not use the prism layer meshing option

joaorp · February 5, 2010, 07:55

I've tried not using prism layers, but I won't get the effect I want (meaning the first picture there with the prism layers included).

Is there any program I can use to make once cell thickness meshes? If start ccm doesnt' do it?

Maddin · February 11, 2010, 09:43

Why you don't want this?

joaorp · February 11, 2010, 17:41

I want this, but with prism layers :O because that is really what I require.

Maddin · February 12, 2010, 05:18

Then use the remesher to get a good surface mesh and prism layer to get this volume mesh

joaorp · February 12, 2010, 15:09

Will it produce the first picture mesh? I mean, one cell thickness? Because I've never achieved that even using the remesher.

Maddin · February 13, 2010, 06:00

The wall layers are prism, this you can change, only when you modify the mesh via custom meshing on the sides (volumetric controls).
Maybe I don't understand what you really want

joaorp · February 13, 2010, 06:51

I really appreciate your time and help, what I want to do is make a mesh like the first picture (grey one). What I usually end up with is something like the second one. The red part is my main problem. They're not even alike.

Maddin · February 15, 2010, 08:12

I think when you try the mesh setting with a simple sample you will understand what happens.

February 5, 2010, 04:36	meshing	#2
karthickeyan Member karthickeyan Join Date: Feb 2010 Location: coimbatore Posts: 36 Rep Power: 16	i think u should not use the prism layer meshing option

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Periodic mesh creation in ICEM	epa	Main CFD Forum	1	May 1, 2012 17:24
2d irregular grid	Remy	Main CFD Forum	1	December 22, 2008 05:49
Help needed for airfoil mesh creation using GAMBIT	Alagesanj	FLUENT	2	October 20, 2008 12:39
basic of mesh refinement	arya	CFX	4	June 19, 2007 13:21
General questions on grid-based computing	Adrin Gharakhani	Main CFD Forum	21	June 5, 2000 14:47

February 5, 2010, 07:55		#3
joaorp New Member João Pinto Join Date: Feb 2010 Posts: 7 Rep Power: 16	I've tried not using prism layers, but I won't get the effect I want (meaning the first picture there with the prism layers included). Is there any program I can use to make once cell thickness meshes? If start ccm doesnt' do it?

February 11, 2010, 09:43		#4
Maddin Senior Member Join Date: Mar 2009 Posts: 260 Rep Power: 18	Why you don't want this?

February 11, 2010, 17:41		#5
joaorp New Member João Pinto Join Date: Feb 2010 Posts: 7 Rep Power: 16	I want this, but with prism layers :O because that is really what I require.

February 12, 2010, 05:18		#6
Maddin Senior Member Join Date: Mar 2009 Posts: 260 Rep Power: 18	Then use the remesher to get a good surface mesh and prism layer to get this volume mesh

February 12, 2010, 15:09		#7
joaorp New Member João Pinto Join Date: Feb 2010 Posts: 7 Rep Power: 16	Will it produce the first picture mesh? I mean, one cell thickness? Because I've never achieved that even using the remesher.

February 13, 2010, 06:00		#8
Maddin Senior Member Join Date: Mar 2009 Posts: 260 Rep Power: 18	The wall layers are prism, this you can change, only when you modify the mesh via custom meshing on the sides (volumetric controls). Maybe I don't understand what you really want

February 13, 2010, 06:51		#9
joaorp New Member João Pinto Join Date: Feb 2010 Posts: 7 Rep Power: 16	I really appreciate your time and help, what I want to do is make a mesh like the first picture (grey one). What I usually end up with is something like the second one. The red part is my main problem. They're not even alike.

February 15, 2010, 08:12		#10
Maddin Senior Member Join Date: Mar 2009 Posts: 260 Rep Power: 18	I think when you try the mesh setting with a simple sample you will understand what happens.