<html><body bgcolor="#FFFFFF"><div>Second that. However for inexperienced simulants I would highly recommend DesignBuilder for building CFD studies. It's cuboid modelling grid combined with full energyplus Air Flow Network boundry condition generation and super user interface, remains the most rewarding building CFD package today. Free 30 day trial and student licensing options.</div><div><br></div><div>I usually avoid advertising speak, but in this case IMO there is for our friend no alternative. Like David said Trnsys coupling with COMMIS or FLUIENT is not for beginners and actually even crack definition and CFD boundary condition setup is very technical.</div><div><br></div><div>Hope this can help.<br><br>Sent from my iPhone</div><div><br>On 14.03.2013, at 04:55, Matt Duffy <<a href="mailto:duffy@tess-inc.com">duffy@tess-inc.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><div>You are a patient saint, DB...<br><br>Sent from my iPhone</div><div><br>On Mar 13, 2013, at 9:29 PM, David BRADLEY <<a href="mailto:d.bradley@tess-inc.com"><a href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a></a>> wrote:<br><br></div><blockquote type="cite"><div>
  
    
  
  
    Jihad,<br>
      CFD stands for Computational Fluid Dynamics. CFD Software packages
    are highly complex and seek to determine air flows by breaking up
    air volumes into millions and millions of finite elements; each
    finite element's momentum is described by the Navier Stokes
    equations. While TRNSYS can connect with Fluent (one particular CFD
    tool), it does not have a CFD package built in. Cosimulation between
    TRNSYS and a CFD is a very rarely used technique and is almost never
    used in building simulation because of the enormous time needed to
    solve the flow problem. <br>
    <br>
    I think it would be wise to find a TRNSYS expert who can assist you
    in defining the problem that you want to simulate and to determine
    whether you really need to know the speed of air flowing through
    your building. If interzonal air flows are needed at all then
    simplified approaches are used (TRNFlow, CONTAM, etc.). I want to
    stress, however, that even these simplified techniques are quite
    complicated to implement, are not for TRNSYS beginners and more
    often than not, are unnecessary except for complex spaces such as
    atria and for natural ventilation studies. <br>
    <br>
    Regards,<br>
     David<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 3/13/2013 11:11, jihad alaoui sosse
      wrote:<br>
    </div>
    <blockquote cite="mid:CAAhOvJRS7yPP08TOafwkrSXDBtWSvWviQpi3B2ub5KNXyU5oNA@mail.gmail.com" type="cite">
      <div dir="ltr"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"><font size="-1"> thanks
                                                          but when i can
                                                          find the <font face="Arial"> CFD

                                                          software</font><font style="font-family:Arial" size="-1">s on my instalation</font><font style="font-family:Arial" size="-1">.</font></font></font></font></font></font></font></font></font></font> <br>
        <div class="gmail_quote">
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div text="#000000" bgcolor="#FFFFFF">
              <div> <br>
              </div>
            </div>
          </blockquote>
        </div>
        <div dir="ltr">                                              <font size="3" face="Times New Roman">
          </font>
          <div style="margin:0cm 0cm 0pt;text-align:left"><b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif";font-size:10pt">Jihad
                  Alaoui Sosse</span></i></b></div>
          <div style="margin:0cm 0cm 0pt;text-align:left">
            <span style="color:rgb(31,73,125);font-family:"Times
              New Roman","serif";font-size:10pt"><font size="3" color="#000000">
              </font>
              <p style="margin:0cm 0cm 0pt"><span style="color:rgb(31,73,125);font-family:"Book
                  Antiqua","serif"">Ingénieur d'étude</span></p>
              <font size="3" color="#000000">
              </font></span></div>
          <p style="margin:0cm 0cm 0pt;text-align:left"><i><span style="color:rgb(31,73,125);font-family:"Times New
                Roman","serif"">Département Energie <br>
              </span></i></p>
          <p style="margin:0cm 0cm 0pt;text-align:left">
            <i><span style="color:rgb(31,73,125);font-family:"Times
                New Roman","serif"">Tél : O648883325 ;</span></i></p>
          <p style="margin:0cm 0cm 0pt;text-align:left"><b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif"">Courriel : <a moz-do-not-send="true" href="mailto:sys.energie@gmail.com" target="_blank"><a href="mailto:sys.energie@gmail.com">sys.energie@gmail.com</a></a></span></i></b></p>
          <p style="margin:0cm 0cm 0pt;text-align:left"><b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif"">N</span></i></b><b><i><span style="color:lime;font-family:"Times New
                  Roman","serif"">O</span></i></b><b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif"">VEC</span></i></b><b><i><span style="color:blue;font-family:"Times New
                  Roman","serif"">, </span></i></b><b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif""> </span></i></b><i><span style="color:rgb(31,73,125);font-family:"Times New
                Roman","serif"">Filiale
                de CDG Développement - Groupe CDG</span></i></p>
          <p style="margin:0cm 0cm 0pt;text-align:left"><i><span style="color:rgb(31,73,125);font-family:"Times New
                Roman","serif"">Angle Avenue Annakhil et
                Mehdi Ben Barka</span></i></p>
          <p style="margin:0cm 0cm 0pt;text-align:left"><i><span style="color:rgb(31,73,125);font-family:"Times New
                Roman","serif"">Espace les Palmiers – Hay
                Riad – Rabat - MAROC</span></i></p>
          <div style="margin:0cm 0cm 0pt;text-align:left">
            <b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif"">Site web : <u><a moz-do-not-send="true" title="http://www.novec.ma/
                      blocked::http://www.novec.ma/" href="http://www.novec.ma" target="_blank"><span style="color:rgb(31,73,125)">www.novec.ma</span></a></u></span></i></b></div>
          <div style="margin:0cm 0cm 0pt;text-align:left"><b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif""></span></i></b> </div>
          <p style="margin:0cm 0cm 0pt;text-align:left"><b><i><span style="color:lime;font-family:Webdings">P</span></i></b><b><i><span style="color:green;font-family:Webdings"> </span></i></b><b><i><span style="color:rgb(31,73,125);font-family:"Times
                  New Roman","serif"">Avant d'imprimer,
                  pensez à
                  l'environnement !</span></i></b><i><span style="color:blue;font-size:9pt"></span></i></p>
          <font size="3" face="Times New Roman">
          </font><br>
        </div>
      </font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></div>
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      <pre wrap="">_______________________________________________
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<a class="moz-txt-link-freetext" href="https://mailman.cae.wisc.edu/listinfo/trnsys-users"><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a></a>
</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com"><a href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a></a>

<a class="moz-txt-link-freetext" href="http://www.tess-inc.com"><a href="http://www.tess-inc.com">http://www.tess-inc.com</a></a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com"><a href="http://www.trnsys.com">http://www.trnsys.com</a></a></pre>
  

</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>TRNSYS-users mailing list</span><br><span><a href="mailto:TRNSYS-users@cae.wisc.edu"><a href="mailto:TRNSYS-users@cae.wisc.edu">TRNSYS-users@cae.wisc.edu</a></a></span><br><span><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users"><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a></a></span><br></div></blockquote></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>TRNSYS-users mailing list</span><br><span><a href="mailto:TRNSYS-users@cae.wisc.edu">TRNSYS-users@cae.wisc.edu</a></span><br><span><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a></span><br></div></blockquote></body></html>