How to control residuals?

Akuji · May 22, 2012, 04:23

Hello!

I simulated a flow around surface-mounted cube according to the experiment of Martinuzzi and Tropea. I use a simpleFoam solver and had a results of filed of velocities and pressure very close to the real.
But when I plot a residuals I saw that it is very hight.

How can I control it? I want to have residuals about 1e-05.

jferrari · May 25, 2012, 09:49

I could be mistaken, but isn't this an unsteady problem? That could be why your residuals aren't behaving.

Akuji · May 25, 2012, 11:36

Quote:

Originally Posted by jferrari

I could be mistaken, but isn't this an unsteady problem? That could be why your residuals aren't behaving.

jferrari, maybe I have a mistake, but I try to get a steady solution. I use a simpleFoam - in user's gid it is a steady solver

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May 25, 2012, 09:49		#2
jferrari Member Joe Join Date: Dec 2011 Location: Groton, CT Posts: 69 Rep Power: 14	I could be mistaken, but isn't this an unsteady problem? That could be why your residuals aren't behaving.