A interactive mesh creation tool. Discretizer will create geometry and meshes for three dimensional flow simulations (CFD). Geometry import is not a goal: Discretizer will be furiously fast geometry builder (on many common engineering applications at least.

I want to do reusable already meshed geometries for parametrization and optimization.

May 10, 2009 - Ubuntu 9.04 - Jaunty Jackalope - Installation

Install FXRuby:
sudo apt-get install libfox-1.6-0 libfox-1.6-dev libfox-1.6-doc libopengl-ruby1.8 libruby1.8-extras ruby1.8-dev g++ libxrandr-dev subversion
sudo gem-install fxruby
svn co https://discretizer.svn.sourceforge.net/svnroot/discretizer discretizer
cd discretizer/discretizer/lib
ruby discretizer.rb
Install OpenFOAM.

May 6, 2009 - symmetry boundary condition

April 28, 2009 - SVN revision 73

There are still some things broken after the implementation of new mesh export.

April 16, 2009 - Slightly more complex

I tried to do a slightly more complex geometry. This is some kind of flow splitter.

April 16, 2009 - Long pipe

Just did a very long pipe. It was easy, almost fun. Mesh took 27 seconds to export and contain 145719 cells, it's just one block.

April 13, 2009 - Faceface extrusion

Oh, this kind of work now too.

April 13, 2009 - Ogrid Extrusion

I just made a longer pipe...

April 12, 2009 - Ogrid Extrusion

Now the the internals of Discretizer allow this kind of extruded mesh. 97020 cells in 5 minutes. Think I will commit soon.

April 8, 2009 - Almost there

It will be nice when this thing work 100%

April 8, 2009 - It's so close

I've wanted to extrude face-faces a long time. But I have to go to sleep :-(


Now I don't try to use stitchMesh anymore

April 7, 2009 -Mesh export example

Now it will be easy to add some useful features.


The new mesh export is in the svn repository at sourceforge

April 6, 2009 -mesh export

Things are starting to shape up with the new mesh export.

March 24, 2009 -mesh export - *updated*

There are no results yet of the new mesh export. That is because I've done a boring exercise in 2d to get all things right. I think I have sorted out all issues now. The 3d version for Discretizer will be available within weeks. Then the implementation of extrusions (face-face ones below) will be possible with ease (mergeprog.rb, mergeprog.xls).

March 14, 2009 -stitchMesh approach abandoned

Seems like I can't get stitchMesh to work so I will just redo the mesh export in Discretizer... This time it has to be great.

Feb 26, 2009 -stitchMesh sucks!

Vertices extruded from facefaces

I want to make Discretizer usable as fast as possible. Then the OpenFOAM utility stitchMesh seemed as a good idea. Only problem is that it is broken. I hope the version that Hrvoje Jasak makes is better it is called OpenFOAM-1.5-dev and can be downloaded from http://powerlab.fsb.hr/ped/kturbo/OpenFOAM/release/
Also I like to mention that OpenCFD does not acknowledge contributions which I don't like at all. Even if I like Henry Weller to make a lot of money I still think OpenCFD should try to have only one good version of OpenFOAM. I have a sense that Cd-Adapco bought his snappyHexMesh. And they have a version with feature lines. Don't think Cd-Adapco would like any contributions adding featurelines to OpenFOAM. Maybe OpenCFD also want to avoid featurelines for a certain time. For how long?

Feb 22, 2009 -sourceforge svn version 71

It's possible to use multiline on Ruby <1.8.7 now. I removed the usage of Fixnum#odd? which is only available on Ruby 1.8.7 and higher. This makes it possible to use multiline in Windows and other operating systems with older versions of Ruby.

Feb 22, 2009 -update of multiline

Faces from edges extruded along a multiline.

Last updated April 8, 2009