<div class="gmail_quote">On Fri, Dec 30, 2011 at 11:25, Dominik Szczerba <span dir="ltr"><<a href="mailto:dominik@itis.ethz.ch">dominik@itis.ethz.ch</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div id=":3ep">Yes, I want to get a time averaged steady state. I am able to do this<br>
with another (pressure correction) solver, was just comparing.<br></div></blockquote><div><br></div><div>What makes you think that the point where some nonlinear solve <b>stagnates</b> has anything to do with correct time-averaged statistics?</div>
<div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div id=":3ep">And you gave me a very good hint: I do not have a turbulence model,<br>
but I have streamline diffusion, which if increased, makes the crash<br>
go away, which indeed seams to indicate a singular system.</div></blockquote></div><br><div>You should use a turbulence model. Even a zero-equation model like Smagorinsky would be better than simple streamline diffusion.</div>
<div><br></div><div>What is your verification and validation process?</div>