open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi,
1)I want to know which technique/method is used to generate triangular mesh in bluekenue. is it Delaunay finite element method?

2)Please guide me to learn how to use Trigrid?

Hello,

1) yes it is delaunay

2) please check out our SUPPORT page. Trigrid is not part of the TELEMAC system but there are a number of organisation who would be please to teach you how to use it.

Hope this helps,
Sébastien.

Dear Sebastien,

Thanks for your quick reply. I will to search for Trigrid. Please give details of user manual for trigrid if any.

Hello,

The last time Trigrid was improved upon by its authors was in 1998 -- it has not been developed since. Although I used to use Trigrid a lot, and Canadian Hydraulics (nrc-ocre.gc.ca) have recompiled the source with a recent Intel Fortran compiler in 2007, I have never see a manual for the software (maybe our Canadian friends know of one ?).

The person who last work on it was Adrian Dolling, at the time at Channel Consulting Ltd., Victoria, BC, Canada. Maybe you can trace the author ?

Again, this is not a software we support on this site. Rather I would advise you to use Blue Kenue from Canadian Hydraulics (nrc-ocre.gc.ca). Blue Kenue produces very nice mesh if you can spend a little bit of your time learning how to use it.

Can you tell us why you are after Trigrid ?

Hope this helps,
Sebastien.

Hi Sebastien,
I thought of using trigrid to edit the mesh. It is very difficult to use trigrid so i thought getting help from the forum

Hello,

Mesh editing -- yes indeed, TriGrid is very good for that, especially identification / colouring of troubled nodes and triangles.

Presumably, you know that you can download TriGrid from SourceForge. Here is the Manual (from 2002):
trigrid-manual

Do note that our collegues at OCRE (formerly Canadian Hydraulics) have since re-compiled TriGrid as a 64bit application with the Intel Fortran Compiler. Work done in collaboration with ARTELIA (formerly Sogreah). Maybe Martin can provide the latest executable on this site ?

Hope this helps,
Sébastien.

hi,

Thanks for your trigrid manual link and if i face some difficulties while learning it then i will post it.

regards,
Sathish

Hi,

The last trigrid executable that I created (circa Nov-2007) can be found at ftp://kenueftp.chc.nrc.ca/BlueKenue/
My modifications were mainly to do with increasing the number of nodes allowed to some very large number.

Enjoy...

Please note:
This executable is provided "as-is", for historical reasons, may contain square-pegs-in-round-holes, is not suitable for any purpose what-so-ever, etc. etc. (ie. I will not answer ANY questions) It was built under Windows XP using Visual Studio 2005 and Intel Fortran V9.1. I can confirm that it runs on Windows 7 (64 bit) (my machine here at home) but it is not a 64 bit application.

Cheers... Martin