<div class="gmail_quote">On Fri, Dec 30, 2011 at 10:59, 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=":1qi">Yes, I am a bit malicious, solving for steady state where such is<br>
known not to exists (Karman vortex street past a cylinder). The very<br>
same problem (mesh, constraints, etc.) does not crash when solving<br>
with time stepping. However, I am not completely sure if this is the<br>
reason of the crash, because I am expecting to never be able to<br>
converge, but not to crash.</div></blockquote></div><br><div>You could very well be producing a singular linear system (with large unknown null space). I'm not sure why you want to do this. There are methods to solve for periodic behavior and you could choose a turbulence model in order to produce a steady state.</div>