[petsc-users] Solver/Preconditioner for advection diffusion equation

[Miguel Salazar]

Hi,

Is there an off-the-shelf solver or preconditioner in PETSc to handle advection-diffusion equations with large Peclet numbers (Pe > 2000)? The equations are solved with the FEM and ideally, one could just use the solver through the PETSc settings without having to set up any mesh hierarchy or partitioning (no geometric multigrid or domain decomposition). I read that the Approximate Ideal Restriction method is appropriate for this kind of problems, but the documentation is scarce. Any pointers are welcome.

Thanks,
Miguel



MIGUEL ANGEL SALAZAR DE TROYA
Head of Software Engineering
miguel.salazar at corintis.com<mailto:miguel.salazar at corintis.com>

Corintis SA
EPFL Innovation Park Building C
1015 Lausanne



[https://urldefense.us/v3/__https://storcor.s3.eu-central-1.amazonaws.com/logos/Logo-black.png__;!!G_uCfscf7eWS!ffVhBy46zB5AmzYedi4T90u57oUykOFrmwLZYb73Ui8o5yP_F4JlTA49SFau-ljj-92S4CrYA30sIJI2MR2FTJbt0oZDr8V1$ ]
Here at Corintis we care for your privacy. That is why we have taken appropriate measures to ensure that the data you have provided to us is always secure
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20251013/79a1b0b7/attachment.html>