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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Dear</span></font><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>all</span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>esp-r</span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>users</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I have a question related with fluid flow networks.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>In my project I have a big zone that I have
sub-divided. The contact surfaces between this zones (sub-divided) were set as transparent
fictitious constructions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Them I have set an all air fluid flow networks
between them and define the components between the interior nodes as openings
corresponding to all the contact area between the zones.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>However when I rum the simulator a warning message appears:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Please check (in the following order) that:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><span
style='mso-list:Ignore'>-<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>each node has some flow
path to a boundary pressure and<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><span
style='mso-list:Ignore'>-<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>iteraction convergence
control is not to strict.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Day 23 Month 12 Hour 13.00 : 100 iteractions: flows
solution failed <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>This happens for several days months and hours.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Can someone explain me watts’ wrong.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Thanks in advance.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Best regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Nuno Fernandes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>################################################# <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:bold'>
Nuno Tiago Afonso Fernandes</span></font><o:p></o:p></b></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Universidade de
Aveiro</span></font><font face=Arial><span style='font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Departamento de
Engenharia Mecânica<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Campus
Universitário de Santiago </span></font><font face=Arial><span
style='font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> 3810-193 Aveiro <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Portugal</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=3
face=Arial><span style='font-size:12.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Tel.: +351
234 370 830<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="mailto:nuno.fernandes@mec.ua.pt">nuno.fernandes@mec.ua.pt</a><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:9.0pt;text-indent:9.0pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="http://www.ua.pt/">www.ua.pt</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>##########################################################<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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