inletOutlet for velocity but seems go in sometimes -- CFD Online Discussion Forums

January 16, 2014, 03:02

inletOutlet for velocity but seems go in sometimes

palmerlee

Member

Peter

Join Date: Nov 2011

Posts: 46

Rep Power: 14

Hi, everyone!

I have a problem. In my LES simulation, I implement inletOutlet for velocity at a boundary normal to z direction. So, uz is supposed to be > or = 0 at the boundary.

Quote:

type inletOutlet;
inletValue uniform (0 0 0);
value uniform (0 0 0);

What's confusing is, at the boundary, uz is < 0 (means the flow goes inside) sometimes.

I would be very happy if anyone leave some comments on this.

Attached Images

inletOutlet_top_0.0022.jpg (20.7 KB, 15 views)

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