[Nek5000-users] Maintaining order of perturbation

[nek5000-users at lists.mcs.anl.gov]

Hi all,

I want to add perturbation of specific order (e.g. 10^-08) to the whole
velocity field at each time-step. The velocity and pressure are both
considered on GLL points. After adding perturbation, to have velocity as
continuous function across the elements dsavg() is called (I found the
info in one of the threads). I think it changes the order of perturbation
near to the element boundary. I was wondering if there is other way to do
so.

This is my first mail to the group and I am using the code for my thesis.

Thanks in advance!

Best regards,
Sayed
MSc. COSSE
KTH, Sweden
FAU-Erlangen,Germany