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<p class="MsoNormal"><span style="font-size:11.0pt">Hello,<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">You can see how the code handles the ‘circuit’ BC (and other BCs) in Grid_bcApplyToRegion.F90. The circuit BC uses a zero-gradient (ie, outflow) condition for non-B-field variables, and it also forces velx
= vely = 0.<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;font-family:"Calibri",sans-serif;color:black">--</span><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#181A1B">Eddie Hansen</span><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#181A1B">Applications Group Leader<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#181A1B">Flash Center for Computational Science</span><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;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="color:black">From:
</span></b><span style="color:black">flash-users <flash-users-bounces@flash.rochester.edu> on behalf of lizy <3287940670@qq.com><br>
<b>Date: </b>Sunday, July 28, 2024 at 10:29 PM<br>
<b>To: </b>flash-users <flash-users@flash.rochester.edu><br>
<b>Subject: </b>[FLASH-USERS] The fluid effect of circuit boundary_type<o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Times New Roman",serif">Dear Flash developers and all ,</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Times New Roman",serif">My question is, what other functions does circuit boundary_type has besides converting current into boundary magnetic conditions? Is its fluid boundary effect equivalent to peridic, reflect,
or outflow(zero-gradient)?</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Times New Roman",serif">Thank you very much for your help</span><span style="font-size:9.0pt;font-family:DengXian">！</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Times New Roman",serif">Lizy</span><o:p></o:p></p>
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