[Nek5000-users] Temperature Perturbation Zone

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

Dear Nicolas,


For time-dependent boundary conditions, you could

use something like the expression you have in your email.


You would need "t  " ( "tee" space space) for the thermal

boundary conditions in your .rea or .box file.


Please let me know if this solves your problem.


Paul


________________________________
From: Nek5000-users <nek5000-users-bounces at lists.mcs.anl.gov> on behalf of nek5000-users at lists.mcs.anl.gov <nek5000-users at lists.mcs.anl.gov>
Sent: Monday, May 14, 2018 5:26:23 PM
To: nek5000-users at lists.mcs.anl.gov
Subject: [Nek5000-users] Temperature Perturbation Zone

Hi,

I'm setting a 3D box to perform natural convection problems in a closed cavity. After trying several method i can't manage to define a zone with a variable temperature perturbation in the usrchk() routine.

Let's say, that temp = temp + A*sin(w*time) in a square of boundaries [x_min, x_max] x [y_min, y_max] x [z_min, z_max] for x, y, z.

Any advice for implementing this?

Regards,

Nicolás Andrés Órdenes Leiva

Estudiante de Ingeniería Civil Mecánica
Universidad Técnica Federico Santa María
Tel: +56 9 7619 2857
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