Sometimes I have to simplify the mesh while preserving the model's volume. Many versatile software packages already have some function that can handle this task but often does not keep the geometry's volume intact and results in some level of shrinkage, especially when the geometry is of complex nature.
The following is the geometry that is going to be filled with the fluid particles in the Smooth Particle Hydrodynamics (SPH) software package used for my simulations. When elements of bad quality are used, some part of this geometry may end up with no particles to begin with, which is very bad for the accuracy of the SPH (Fluid-Structure Interaction) simulations. Here, the number of elements is not as important as their quality. Hence, it can be simplified as much possible.
Now, the software that I use for mesh simplification is called QSlim. The file format that it eats is
So, after saving your surface mesh file as
Now, that I have the
And, convert it back to
A mesh file in
Dept. of Mechanical Engineering
School of Eng. & Comp. Sciences
New York Institute of Technology
Old Westbury Campus - HSH116A
Old Westbury NY 11568-8000