[GiDlist] Prism elements

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zwozniak at cogeco.ca

[GiDlist] Prism elements

Post by zwozniak at cogeco.ca »

Hi all,
I need to generate a single layer of prism elements over a body meshed with tetras. So far I was successful only with
right prisms placed between identical parallel flat surfaces. Is there any way to generate more general prism elements?
Thank you in advance,
Zdzislaw
User avatar
abelcs
Posts: 146
Joined: Mon Oct 13, 2014 9:14 am

[GiDlist] Prism elements

Post by abelcs »

Dear Zdzislaw,

You can generate prism elements assigning if the volume meshed is set as
Semi-structured (Mesh-Semistructured). This only can be applied to
topologically prismatic volumes.

If you don't want to construct a geometrical volume (only like a extrusion
of the triangles of the boundary of a tetra mesh) you can access to the
option in the copy window (Utilities-Copy), which are more than a simple
extrusion.

Kind regards,

ABEL


_________________________________
Abel Coll Sans - Civil Engineer
CIMNE - International Center for Numerical Methods in Engineering
Ofice c-2, C1 building - Campus Nord UPC
Gran Capità s/n, 08034 Barcelona
T: 34 - 93 401 74 03 Fax: 34 - 93 40 65 17
________________________________



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-----Mensaje original-----
De: gidlist-admin at gatxan.cimne.upc.edu.gid.cimne.upc.edu
[mailto:gidlist-admin at gatxan.cimne.upc.edu.gid.cimne.upc.edu] En nombre de
zwozniak at cogeco.ca
Enviado el: viernes, 23 de octubre de 2009 16:28
Para: gidlist at gatxan.cimne.upc.edu
Asunto: [GiDlist] Prism elements

Hi all,
I need to generate a single layer of prism elements over a body meshed with
tetras. So far I was successful only with right prisms placed between
identical parallel flat surfaces. Is there any way to generate more general
prism elements?
Thank you in advance,
Zdzislaw
_______________________________________________
GiDlist mailing list
GiDlist at gid.cimne.upc.edu
http://gid.cimne.upc.es/mailman/listinfo/gidlist
User avatar
escolano
Posts: 1922
Joined: Sun Sep 05, 1982 10:51 pm

[GiDlist] Prism elements

Post by escolano »

Maybe it is also interesting to you to know that GiD now can generate
"boundary layer elements", that are layers of very thin elements close to a
boundary
(e.g. typical of CFD simulations).
To use this feature (last GiD beta versions only) go to menu:
Mesh-Boundary Layer-3D
Select the volume, and then select surfaces where to apply "boundary layer
information" (number of layers, size of first layer, and grow factor)

Note: This elements are now tetrahedra, not prisms as you want

Enrique Escolano

----- Original Message -----
From: "Abel Coll" abelcs at cimne.upc.edu
To: gidlist at gatxan.cimne.upc.edu
Sent: Friday, October 23, 2009 4:49 PM
Subject: RE: [GiDlist] Prism elements


Dear Zdzislaw,

You can generate prism elements assigning if the volume meshed is set as
Semi-structured (Mesh-Semistructured). This only can be applied to
topologically prismatic volumes.

If you don't want to construct a geometrical volume (only like a extrusion
of the triangles of the boundary of a tetra mesh) you can access to the
option in the copy window (Utilities-Copy), which are more than a simple
extrusion.

Kind regards,

ABEL


_________________________________
Abel Coll Sans - Civil Engineer
CIMNE - International Center for Numerical Methods in Engineering
Ofice c-2, C1 building - Campus Nord UPC
Gran Capità s/n, 08034 Barcelona
T: 34 - 93 401 74 03 Fax: 34 - 93 40 65 17
________________________________



AVISO IMPORTANTE

Los datos de carácter personal contenidos en el mensaje, se registrarán en
un fichero para facilitar la gestión de las comunicaciones de CIMNE. Se
pueden ejercitar los derechos de acceso, rectificación, cancelación y
oposición por escrito, dirigiéndose a nuestras oficinas de CIMNE, Gran
Capitán s/n, Edificio C1 - Campus Norte UPC, 08034 Barcelona, España.

AVÍS IMPORTANT

Les dades de caràcter personal contingudes en aquest missatge es
registraran
en un fitxer per facilitar la gestió de les comunicacions del CIMNE. Es
poden exercir els drets d'accés, rectificació, cancel·lació i oposició,
per
escrit a les nostres oficines del CIMNE, Gran Capità s/n, Edifici C1,
Campus
Nord UPC, 08034 Barcelona, Espanya.

IMPORTANT NOTICE

All personal data contained in this mail will be processed confidentially
and stored in a file property of CIMNE in order to manage corporate
communications. You may exercise the right of access, rectification,
deletion and objection by letter sent to CIMNE, Gran Capitán, Edificio
C1 -
Campus Norte UPC, 08034 Barcelona, Spain.

________________________________




-----Mensaje original-----
De: gidlist-admin at gatxan.cimne.upc.edu.gid.cimne.upc.edu
[mailto:gidlist-admin at gatxan.cimne.upc.edu.gid.cimne.upc.edu] En nombre de
zwozniak at cogeco.ca
Enviado el: viernes, 23 de octubre de 2009 16:28
Para: gidlist at gatxan.cimne.upc.edu
Asunto: [GiDlist] Prism elements

Hi all,
I need to generate a single layer of prism elements over a body meshed
with
tetras. So far I was successful only with right prisms placed between
identical parallel flat surfaces. Is there any way to generate more
general
prism elements?
Thank you in advance,
Zdzislaw
_______________________________________________
GiDlist mailing list
GiDlist at gid.cimne.upc.edu
http://gid.cimne.upc.es/mailman/listinfo/gidlist

_______________________________________________
GiDlist mailing list
GiDlist at gid.cimne.upc.edu
http://gid.cimne.upc.es/mailman/listinfo/gidlist
alexis campos

[GiDlist] surfaces generate

Post by alexis campos »

Hi, I'm trying to create Surfaces with GID, I mean create a "problem type" in which I could modify parameters of equations or functions and this could generate the Surfaces or volumes (spheres,pyramids, random Surfaces, etc) according to this parameters, my question is Can I do this from the problem type of GID or it's necessary to program this on C and then connect this with GID?

Best regards

Alexis campos


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User avatar
escolano
Posts: 1922
Joined: Sun Sep 05, 1982 10:51 pm

[GiDlist] surfaces generate

Post by escolano »

You can create surfaces at Tcl scripting level.
For example, the 'Geometry-Create-Parametric surface...' tool create a cubic approximation to a parametric equation.
See 'Parametric.tcl' file inside our scripts folder.

See also GiD help about our 'GiD_Geometry' special Tcl-GiD command, to create geometric entities (NURBS, etc) from Tcl

Regards

Enrique Escolano
----- Original Message -----
From: alexis campos
To: gidlist at gatxan.cimne.upc.edu
Sent: Wednesday, October 28, 2009 3:53 AM
Subject: [GiDlist] surfaces generate


Hi, I'm trying to create Surfaces with GID, I mean create a "problem type" in which I could modify parameters of equations or functions and this could generate the Surfaces or volumes (spheres,pyramids, random Surfaces, etc) according to this parameters, my question is Can I do this from the problem type of GID or it's necessary to program this on C and then connect this with GID?

Best regards

Alexis campos



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