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<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial>Dear Francisco,</FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial>in general you don't need to change the
parameters.</FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial>Convergence problems are often introduced by the control of
openings.</FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial>You may check you settings.</FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial>Also have in mind that if you open a large opening
</FONT></SPAN><SPAN class=298204210-22092010><FONT color=#0000ff size=2
face=Arial>often high air flows occur.</FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial>You may try to open it step by step.</FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial>Marion</FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN>
</DIV>
<DIV dir=ltr align=left><SPAN class=298204210-22092010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN>
</DIV>
<DIV dir=ltr align=left>
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</DIV>
<DIV dir=ltr align=left><FONT size=2 face=Tahoma><B>Von:</B>
frodriguezpc@labein.es [mailto:frodriguezpc@labein.es] <BR>
<B>Gesendet:</B>
Dienstag, 21. September 2010 18:59<BR>
<B>An:</B>
trnsys-users@cae.wisc.edu<BR>
<B>Betreff:</B> [TRNSYS-users] TRNFLOW convergence
problems<BR>
</FONT><BR>
</DIV>
<DIV></DIV>
<P>
<BR>
<FONT size=2 face=sans-serif>Dear all,</FONT> <BR>
<BR>
<FONT size=2
face=sans-serif>I am working on a rather simple trnflow simulation, and having
convergence problems even at very low timesteps and high tolerances (in the
simulation control cards). When I turn off trnflow everything is OK.</FONT>
<BR>
<FONT size=2 face=sans-serif>Is there anything I can do about this? Should I
try and modify these parameters in the type56a-Trnflow parameter list as
well?</FONT> <BR>
<BR>
<FONT size=2 face=sans-serif>Thanks in advance,</FONT>
<BR>
<BR>
<FONT size=2 face=sans-serif>Francisco Rodríguez
Pérez-Curiel<BR>
<BR>
TECNALIA-Construcción<BR>
Parque Tecnológico, Edificio 700.
E-48160 Derio (Bizkaia) (SPAIN)<BR>
Tel. +34 94 607 33 00, Fax. +34 94 607
33
49<BR>
francisco.rodriguez@tecnalia.com,<BR>
www.tecnalia.com<BR>
<BR>
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