Oh ok thanks. Is there any way to change the absolute timestep? I'd like my simulation to go beyond 1.5 time units. I suppose that could lead to a loss of accuracy, but currently the timestep is diminishing to 0.<br><br>
Brian<br><br><div class="gmail_quote">On Wed, Nov 17, 2010 at 12:21 PM, Walter Landry <span dir="ltr"><<a href="mailto:walter@geodynamics.org">walter@geodynamics.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">Brian Wilson <<a href="mailto:bjwilson83@gmail.com">bjwilson83@gmail.com</a>> wrote:<br>
> Hi Walter,<br>
><br>
> I've been having trouble getting dt to change the time step correctly. I set<br>
> dt to 1 but I get the following time steps:<br>
><br>
> TimeStep = 0, Time = 0<br>
> TimeStep = 1, Time = .739729<br>
<br>
</div>Setting "dt" only sets the timescale for the mechanical Stokes flow.<br>
Gale also computes a timestep from the diffusion and advection terms<br>
of the Energy equation. If those timesteps are smaller than what you<br>
set for the mechanical Stokes flow, then Gale uses those.<br>
<br>
Ideally, Gale should use "dt" for both the Energy and Stokes flow<br>
equations, but at present it does not.<br>
<br>
Cheers,<br>
<font color="#888888">Walter Landry<br>
<a href="mailto:walter@geodynamics.org">walter@geodynamics.org</a><br>
<br>
</font></blockquote></div><br>