[CIG-CS] Particle problems and Semi-Lagrangian Schemes for Gamr
Wolfgang Bangerth
bangerth at math.tamu.edu
Tue May 31 13:56:38 PDT 2011
> This is very interesting. What do you mean that they are expensive in
> elements? I would expect the cost of advection would be dwarfed by
> the cost of solving Stokes.
That's certainly the case for the deal.II mantle convection code. I
think I remember that the Stokes solver is about a factor of 6-10 more
expensive.
In your original mail, you had this statement:
> Because of the higher order Q2 elements, it takes
> literally hundreds of particles to get a solution accurate to a part
> in 10^3 in 2D.
Do you mean hundreds of particles *per cell*? And what is the measure by
which you compute accuracy?
Best
W.
More information about the CIG-CS
mailing list