CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   no convergence with pressure outlet BC (http://www.cfd-online.com/Forums/fluent/41271-no-convergence-pressure-outlet-bc.html)

Ralf Schmidt June 6, 2006 04:05

no convergence with pressure outlet BC
 
Hi!

I have a simple geometry (turbulend flow over a plate, 2D, incompressible) and I can NOT achieve convergence! I have a

- pressure outlet BC at the top of my domain and at the right side, and a

- vel. inlet BC at the left side (the plate is at the bottom).

look at http://ww3.cad.de/foren/ubb/uploads/...elmagplate.JPG

When I use wall-BC at the top, everything is fine... But the results are wrong (a pressure gradient will appear).

What settings are appropiate for the seggregated solver?? what urf, what coupling and what discretisation should I use???

Any help is highly appreciated!

Ralf

san June 6, 2006 04:26

Re: no convergence with pressure outlet BC
 
Hi,

i think you want to simulate FLOW OVER A FLAT PLATE.

on top i think you can use symmetry or wall ( with no-slip) condition.

i hope this will help you.

bye san

Swarup June 6, 2006 07:46

Re: no convergence with pressure outlet BC
 
Consult a problem discussed in Anderson's book.


All times are GMT -4. The time now is 04:51.