This page is the "official" web site of DG, the Discontinuous Galerkin Code Developped
at Discontinuous Galerkin
Method . The most important features of DG are :
- An orthogonal basis for the spatial discretization, see this preprint for more details,
- DG is based on the Algorithm Oriented Mesh Database,
for mesh management, mesh adaptation and
parallel issues (load balancing, communictaions, mesh migration,...)
- DG allows to use anisotropic mesh refinement (only in serial), both in 2 and 3D !!
The main contributors of this project (the code I mean)
DG is not (yet) available as an Open Source. Yet, we provide here the
executable under windows (cygwin). This executable requires cygwin1.dll
for running. Put both DG-O.exe and cygwin1.dll in the same directory. We will have soon a
complete documentation about DG. The usage of DG is, in serial,
We provide here several examples of inputfiles with corresponding meshes. The input files contain
comments and explanations on the different parameters.
Backward Facing Step
: very classical problem: a step is impulsively inserted
into a Mach=3 flow, going from left to right. Find here
the input file and
here the initial quad mesh
and the GMSH model
Note that the gmsh model is only useful if user wants to change the initial mesh. GMSH is available
to those examples are password protected.