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Hi Muhsin,<br>
<br>
Could you solve your problem? It's weird but I kinda have the same
issue. I'm working on an example for heat transfer in a rectangle
(2D problem) and when I use elements of the form 2X2 or 4X4 it works
fine. However, when I increase the number of elements to, say, 8X8
(to exploit using more nodes of course), although the solver works
fine and generates all the corresponding fld files as expected but
there is the error of "The first time step in a Nek file must
contain a mesh" in Visit. As I said, for fewer number of elements
for very same problem I don't get the problem. I appreciate if you
or anyone share any solutions here. Just to reiterate, I also
checked the first line of first time step and meta data, etc. but
found no issue.<br>
<br>
PS is there a way to export results as csv without referring to
Visit? If it is so, I'd sometimes prefer to use it. <br>
<br>
Best,<br>
Saleh<br>
<br>
<div class="moz-cite-prefix">On 12/18/2014 7:54 AM,
<a class="moz-txt-link-abbreviated" href="mailto:nek5000-users@lists.mcs.anl.gov">nek5000-users@lists.mcs.anl.gov</a> wrote:<br>
</div>
<blockquote
cite="mid:mailman.12301.1418907286.3424.nek5000-users@lists.mcs.anl.gov"
type="cite">
<div dir="ltr">Hi all,<br>
<br>
I get error of mesh need to contain the first time step in Nek
file everytime I run .nek5000 file from results of some example
(turbchannel, blasius and expansion). However for the 3dbox
example, I got no error to open it.
<div>I've checked the first line in the first time step file
(.f00001) and have the geometry (X) in them. I also changed
the logic for coordinate output to (T COORDINATES) and
different param66, but still getting the same error. Perhaps
even if I put the mesh output for each timestep not just in
first timestep, I still getting the same error. Note that I've
already set the right plugin and type file during open the
.Nek5000 file. In addition, I've checked the same parameters
for 3dbox example which is same with the other example rea
file, plus 3dbox still gives me no error even if i not switch
the coordinate output to true (F COORDINATES)
<div><br>
</div>
<div>I really hope that anyone who has encountered the same
problem and has solved it to assist me. That would be really
helpful.</div>
<div><br>
</div>
<div>Regards,<br>
<div>-- <br>
<div class="gmail_signature">
<div dir="ltr">Muhsin Mohd Amin
<div>Graduate Student<br>
Department of Mechanical Engineering</div>
<div>The University of Sheffield</div>
</div>
</div>
</div>
</div>
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<br>
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