Hello,
Let's see if i've understood you:
¿you want something like the pictures I send you enclosed:
'Semistructured2cubes.png' and 'Semistructured2cubes2.png'?
To achieve this I've followed these steps:
Creation of the geometry: a square in the xy plane, and then an extrusion
with rotation of 60 degrees on the positive (in one layer) and negative Z
axis (in the other layer).
Semistructured mesh:
1. I choose 'Mesh--semistructured--Volumes' and a windows pop's up asking
me 'Enter number of divisions and assign it to the semi-structured volumes'.
2. I entered '4' and clicked on one volume,
3. then I entered '10' and clicked on the other volume.
4. then I pressed 'escape'.
5. now I chose 'Mesh--semistructured--Set--Master surface'
6. and selected the square which lies on the XY plane, because the mesh of
this 'master surface' will be the one to be extruded along the volumes,
i.e., the z axis.
7. and generated the mesh (Ctrl-G): 1260 Prisms.
I send you enclosed the model, too.
If this is not want you need, ¿can you send us an example?
Miguel
-----Mensaje original-----
De:
gidlist-admin at gatxan.cimne.upc.edu
[mailto:
gidlist-admin at gatxan.cimne.upc.edu] En nombre de Isabel Gil
Enviado el: martes, 03 de abril de 2007 13:35
Para:
gidlist at gatxan.cimne.upc.edu
Asunto: Re: [GiDlist] Two layers, same mesh in plane XY, different division
in X axis.
Sorry for my explanation.
I will try to clarify my doubts.
I have two volumes (indeed two cubes) in different layers that share one
surface.
Volume1 is already meshed and I would like to extrude its mesh made in
the sharing surface (XY-plane) into the opposite face of the Volume2.
On the other hand, I can have different divisions on the structured
direction in each volume, which is a feature that I need.
I have tried to use "Geometry-Create-Contact-Separated volume", as you
said (without using Geometry-Collapse-Model) but the message I obtain is
"2 surfaces are necessary".
Thanks in advance and best regards
Isa
Enrique Escolano wrote:
I don't understand well your questions.
Do you have two volumes in two different places, or they have some surface
in the same location? Then they share this surface?
If a surface is shared between two volumes, then its nodes are also
shared. Maybe you need to collapse both surfaces.
If they are two separated surfaces, in general unstructured meshes
obtained can be different.
You can force the number of divisions in lines with
Mesh-Structured-Lines
If you really need to have the "same mesh" (a one-by-one relationship
between nodes), you can do a trick: create a "separated
contact volume" between this two surfaces
(Geometry-Create-Contact-Separated volume).
By default this pseudo-volume will create prisms connecting nodes, but you
can avoid to create elemens for this volume with
Mesh-Mesh criteria-No mesh-Volumes
Regards
Enrique
----- Original Message -----
From: "Isabel Gil" misabel at litec.csic.es
To: gidlist at gatxan.cimne.upc.edu
Sent: Tuesday, April 03, 2007 11:10 AM
Subject: Re: [GiDlist] Two layers, same mesh in plane XY, different
division in X axis.
Thanks Abel,
The problem isn't in the structured direction, it is in the plane where
the elements are unstructured.
Let's imagine I have a cube with 2 divisions in the structured direction
(z-axis) and 10 divisions per lines that form a square in the XY-plane.
I have the mesh created.
Later, I create another cube (on another layer) and I want to have
different divisions in the structured direction (z-axis), what I get it
easily, and I also want to have the same mesh in the XY-plane that both
cubes share, how could I do this last one?
Thanks in advance and best regards
Isa
Abel Coll wrote:
Dear Isa,
When you select a volume as Semi-structured, a window comes asking for
the
number of divisions in the structured direction, and you can assign a
different number of divisions to different volumes.
Regards,
ABEL
__________________________________________________________
Abel Coll Sans
CIMNE - International Center for Numerical Methods in Engineering
Office C2 - C1Building - Campus Nord UPC
Gran Capità s/n, 08034 Barcelona
Tfn: 34 - 93 401 74 03 Fax: 34 - 93 401 65 17
abelcs at cimne.upc.edu
_________________________________________________________
-----Mensaje original-----
De: gidlist-admin at gatxan.cimne.upc.edu
[mailto:gidlist-admin at gatxan.cimne.upc.edu] En nombre de Isabel Gil
Enviado el: lunes, 02 de abril de 2007 15:41
Para: GID_FORO
Asunto: [GiDlist] Two layers, same mesh in plane XY, different division
in X
axis.
Hi everybody!
I have the following question to ask:
I have two different layers in 3D (both of them belong of the same
geometry and sharing the plane XY) and I would like to use a
semistructured mesh:
- On one of the layers I would like to have a semistructured mesh in XY
plane and 4 divisions in structured direction (Z).
- On the another one I would like to have the same semistructured mesh
in XY plane but 10 divisions in structured direction (Z).
How would the way be in order to get this aim?
Any advice will be welcome.
Best regards and thanks in advance!
Isa
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--
María Isabel Gil Lorente
LITEC - Laboratorio en Tecnologías de la Combustión. CSIC/DGA/UZ
C/ María de Luna 10, 50018 - Zaragoza / SPAIN
Tel : (+34) 976 716461
e-mail:
misabel at litec.csic.es
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