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<p class="MsoNormal">If the resistivity that you’re setting is independent of temperature, then it doesn’t matter. I only meant that high resistivity is physically more consistent with a low temperature.<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:black">--</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#181A1B">Eddie Hansen</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#181A1B">Applications Group Leader<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#181A1B">Flash Center for Computational Science</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Alvaro Sanchez <alvaro.sanchez@greentownsbyfusion.com><br>
<b>Date: </b>Tuesday, October 31, 2023 at 11:58 AM<br>
<b>To: </b>Hansen, Eddie <ehansen@pas.rochester.edu>, flash-users@flash.rochester.edu <flash-users@flash.rochester.edu><br>
<b>Subject: </b>Re: [EXT] Exclusivity of 3T for unmagnetized plasmas<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Thank you very much for your response
</span><span style="font-size:12.0pt;font-family:"Apple Color Emoji";color:black">🙂</span><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">But why is that? it is not my case... it has a high temperature at the beginning, should I change temperature for those first 400ns and change it after? or not change
it and leave it with the low temp for the whole simulation?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Thank you very much and sorry for the insistence, this is being really helpful so thanks<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Hansen, Eddie <ehansen@pas.rochester.edu><br>
<b>Sent:</b> Tuesday, October 31, 2023 3:37 PM<br>
<b>To:</b> Alvaro Sanchez <alvaro.sanchez@greentownsbyfusion.com>; flash-users@flash.rochester.edu <flash-users@flash.rochester.edu><br>
<b>Subject:</b> Re: [EXT] Exclusivity of 3T for unmagnetized plasmas</span> <o:p>
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<p class="xmsonormal"><span style="font-size:11.0pt">I think this is an ok approach as long as the ‘solid’ body remains relatively cold during that first 400 ns. The 3T capabilities in FLASH should, in theory, not have a problem with this.</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:11.0pt;color:black">--</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#181A1B">Eddie Hansen</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#181A1B">Applications Group Leader</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#181A1B">Flash Center for Computational Science</span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="xmsonormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Alvaro Sanchez <alvaro.sanchez@greentownsbyfusion.com><br>
<b>Date: </b>Tuesday, October 31, 2023 at 8:53 AM<br>
<b>To: </b>flash-users@flash.rochester.edu <flash-users@flash.rochester.edu>, Hansen, Eddie <ehansen@pas.rochester.edu><br>
<b>Subject: </b>[EXT] Exclusivity of 3T for unmagnetized plasmas</span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Hello dear FLASH users, </span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">I am using the 3T implementation in a variation of the ZPinch default, where the plasma is magnetized.</span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">For magnetizing the plasma, what I do, is to let the plasma be a solid body for the first 400ns of my simulation, with a constant high resistivity to let the magnetic
field diffuses through the plasma, then, when setting the plasma to fluid, I change the resistivity to a much lower constant value.</span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Is this valid? I am worried about the 3T implementation, which according to the users' guide has been made for unmagnetized plasmas, so I'm not sure about my approach.
Still, results are quite similar to both experiments and theory.</span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Thank you very much, really appreciatte any help.</span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Alvaro
</span><span style="font-size:12.0pt;font-family:"Apple Color Emoji";color:black">🙂</span><o:p></o:p></p>
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