<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US">Dear all,</span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US"> </span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US">I have some questions about <span class="il">TRNFlow</span> and
Calling Matlab.</span></span></p>

<p class="MsoNormal"><span><span style="font-family: Arial; color: black;" lang="EN-US">1) <span class="il">For</span> <span class="il">Closed</span> <span class="il">Opening</span> in <span class="il">TRNFlow</span>: There
is a flow coefficient <span class="il">Cs</span> per m crack length, the default value is 0.0001 kg/s/m at 1 Pa. Why is it this value? How to get or calculate it?<span style="color: rgb(51, 102, 255);"> <span style="color: rgb(0, 0, 0);">Since I don't know how many meters of the cracks are in the zone.</span>  I seeked from the TRNFlow manual but there is nothing about it.</span><br>
</span></span></p><p class="MsoNormal"><span><span style="font-family: Arial; color: black;" lang="EN-US"><br></span></span></p><p class="MsoNormal"><span><span style="font-family: Arial; color: black;" lang="EN-US">when I set <span class="il">Cs</span> as 0 kg/s/m at 1 Pa, BUT I found there is still air
flow escaping from the zone (there is only one zone in my project). Because I
observed CO2 concentration is still decreasing all the time after <span class="il">closed</span> all
the openings. <br></span></span></p><p class="MsoNormal"><br><span><span style="font-family: Arial; color: black;" lang="EN-US"></span></span></p><p class="MsoNormal"><span><span style="font-family: Arial; color: black;" lang="EN-US">If I want to simulate the infiltration rate (0.4 1/h) after closing all the openings, How could I set this Cs? What equations can I use? </span></span><span><span style="font-family:Arial;color:black" lang="EN-US">Many thanks in advance!</span></span></p>


<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US"> </span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US">2) <span class="il">For</span> Calling Simulink: Which experts
have some experience <span class="il">for</span> calling Simulink? I designed a Controller using
Simulink, I need connect the controller’s output and input with the TYPE 56’s input and output, and set a set-point
value using Simulink. Who could tell me some general guides or pass me your examples
about that. I will appreciate very much for your help! Since I also didn't find anything in Manual or others.<br></span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:red" lang="EN-US"> </span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US">Or must I translate Simulink into M-file,
then connect with TYPE 56?</span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US"> </span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US"><br></span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US"> </span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US">Many thanks in advance!</span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US"> </span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US">Br</span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US"> </span></span></p>

<p class="MsoNormal"><span><span style="font-family:Arial;color:black" lang="EN-US">wang</span></span></p>