<div dir="ltr"><div>Hi Po-Yu! <br></div><div>The average atomic weight is set up by the runtime parameter <i>eos_singleSpeciesA</i>, <br></div><div>whose default value is 1.0 representing a pure hydrogen fluid. <br></div><div>In addition the atomic number is set up by <i>eos_singleSpeciesZ.</i></div><div><br></div><div>The FlatPlate test uses the ideal equations of state calculated by the <i>source/physics/Eos/EosMain/Gamma</i> unit. <br></div><div>One of the equation of state is <i>pres = R_gas/eos_singleSpeciesA*dens*temp<br></i></div><div><i><br></i></div><div>And to know about the thermodynamic variable independence see the runtime parameters: <i><br></i></div><div><i>eosMode</i> and <i>eosModeInit</i>. <i><br></i></div><div><br></div><div>All the best! <br></div><div>Ernesto. <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El lun, 30 may 2022 a las 10:47, Andy Sha Liao (<andy@f.energy>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Po-Yu Chang,<div><br></div><div><br></div><div>I recommend that you study the LaserSlab example and then build your simulations from that example.</div><div><br></div><div>LaserSlab uses the Multispecies unit where you can set materials, e.g., argon, so you can study how they interact to apply to your own problem.</div><div><br></div><div><br></div><div>Andy </div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, May 29, 2022 at 1:35 PM Po-Yu Chang <<a href="mailto:pchang@mail.ncku.edu.tw" target="_blank">pchang@mail.ncku.edu.tw</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi all,<br>
<br>
I am simulating a pure hydrodynamic problem at this point. Therefore, I <br>
modified the example "FlatPlate" for my simulations. In that example, I <br>
specified the pressure and the density of the gas. Then, the temperature <br>
is calculated somewhere in the program. I found that the average atomic <br>
mass is A=1. However, I would like to simulate an Argon gas, i.e., A=40, <br>
but I couldn't find a place to define the average atomic mass. Do anyone <br>
know how I can define the average atomic mass? Thank you.<br>
<br>
Cheers,<br>
<br>
Po-Yu<br>
<br>
-- <br>
Po-Yu Chang<br>
Assistant Professor<br>
Institute of Space and Plasma Sciences (ISAPS)<br>
National Cheng Kung University (NCKU)<br>
No.1, University Road,<br>
Tainan City 70101, Taiwan<br>
(TEL) +886-6-2757575 ext. 65916<br>
<a href="mailto:pchang@mail.ncku.edu.tw" target="_blank">pchang@mail.ncku.edu.tw</a><br>
<a href="http://capst.ncku.edu.tw/PGS/" rel="noreferrer" target="_blank">http://capst.ncku.edu.tw/PGS/</a><br>
<br>
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