Dear Daniel,
Thanks for the reply. It is helpful to know about this.
We have started working with the 3D Cartesian grid, first testing with a
simple spherical diffusion problem for which an analytic solution
exists. (We still make some use of symmetry, since we need to calculate
only one
On Thu, Sep 20, 2018 at 4:15 AM Martinus WERTS
wrote:
>
> Now I would like to go 3D, and the symmetry of our system would allow to
> use a 2D cylindrical grid (r,z) - with zero flux at z=0 and z=L (and
> r=0), and either Dirichlet/zero flux at r=R. Looking at the mailing list
> archive and
Don't you still have a $\nabla . \vec{u} = 0$ equation though? It
doesn't go away. That equation becomes like a constraint.
https://www.comsol.com/multiphysics/boussinesq-approximation
On Wed, Oct 10, 2018 at 5:58 AM fgendr01 wrote:
>
> Hi Daniel,
> Thank you for your answer.
> I thank you for
