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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Zhang,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The ZPinch example problem is not specific to any experiment, so a general Z-pinch only requires an azimuthal field. That being said, FLASH 4.7 does indeed support the implicit diffusion of an axial field
but only for uniform grid setups (+ug). We are actively working on implementing AMR support for future releases.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:black">--</span><span style="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="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#181A1B">Research Scientist</span><span style="color:black"><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="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><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">flash-users <flash-users-bounces@flash.rochester.edu> on behalf of Zhang Daoyuan <zdy0903@stu.xjtu.edu.cn><br>
<b>Date: </b>Tuesday, February 28, 2023 at 9:08 AM<br>
<b>To: </b>flash-users@flash.rochester.edu <flash-users@flash.rochester.edu><br>
<b>Subject: </b>[FLASH-USERS] Is the implicit magnetic diffusion solver can be used for axial magnetic field in FLASH4.7<o:p></o:p></span></p>
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<pre style="overflow-wrap:break-word"><span style="font-size:10.5pt;font-family:SimSun">Dear Flash Developers,<o:p></o:p></span></pre>
<pre><span style="font-size:10.5pt;font-family:SimSun"><o:p> </o:p></span></pre>
<pre><span style="font-size:10.5pt;font-family:SimSun">Thank you for the release of FLASH4.7. I want to ask if the newly added implicit magnetic diffusion solver can be used for axial magnetic field in R-Z 2D simulation. When I look at the "Zpinch" simulation example, I find that the axial magnetic field is not initialized. This is weird because I believe the "Zpinch" case is actually an example of MagLIF experiment. It should have axial magnetic field.<o:p></o:p></span></pre>
<pre style="overflow-wrap:break-word"><span style="font-size:10.5pt;font-family:SimSun">Can we use the axial magnetic field in Zpinch simulation? Thank you very much! <o:p></o:p></span></pre>
<pre style="overflow-wrap:break-word"><span style="font-size:10.5pt;font-family:SimSun"><o:p> </o:p></span></pre>
<pre style="overflow-wrap:break-word"><span style="font-size:10.5pt;font-family:SimSun">Yours<o:p></o:p></span></pre>
<pre style="overflow-wrap:break-word"><span style="font-size:10.5pt;font-family:SimSun">Zhang<o:p></o:p></span></pre>
<pre><span style="font-size:10.5pt;font-family:SimSun"><o:p> </o:p></span></pre>
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