<div dir="ltr">Dear Eddie Hansen,<div><br></div><div>Thank you very much for your reply. </div><div><br></div><div>Plasma focus device is also collisional. This webpage has some basic information and a short video that explains the general concept of the plasma focus. I believe that after watching this video, you can estimate if FLASH can be used for plasma focus device simulation. It will be helpful for me if you watch and estimate. </div><div><br></div><div><a href="https://lppfusion.com/technology/dpf-device/">https://lppfusion.com/technology/dpf-device/</a><br></div><div><br></div><div>Both MHD codes and kinetic codes can be used for different purposes in plasma focus devices for different calculations. They both have their own pros and cons for plasma focus devices.</div><div><br></div><div>I have another question if you don't mind.</div><div>Content of FLASH Users Guide has something called Particles Unit (Chapter 20). Does that mean FLASH also capable of Hybrid PIC simulation?</div><div>If yes, that would be great for me to try flash both as an mhd code and hybrid pic code for plasma focus device simulation.</div><div><br></div><div>Best regards</div><div>Yasar </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 6, 2021 at 5:03 PM Eddie Hansen <<a href="mailto:ehansen@pas.rochester.edu">ehansen@pas.rochester.edu</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"><div dir="ltr">Hi Yasar,<div><br></div><div>Whether or not you can simulate your problem with FLASH depends on the physics of the problem and what sort of approximations or assumptions you're willing to make. For starters, since FLASH is a fluid code, it should really only be used for collisional plasmas. If your problem is more kinetic in nature, then a particle code would be more appropriate.</div><div><br></div><div>FLASH does not contain a neutron yield calculation. You would have to do your own post-processing on the output to come up with an estimate for that.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 6, 2021 at 1:56 AM Yasar Ay <<a href="mailto:yay@ncsu.edu" target="_blank">yay@ncsu.edu</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"><div dir="ltr">Is there anyone who has any idea about my question?<div><br></div><div>Thanks</div><div>Yasar</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 2, 2021 at 2:38 AM Yasar Ay <<a href="mailto:yay@ncsu.edu" target="_blank">yay@ncsu.edu</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"><div dir="ltr">Dear Flash Users,<div><br></div><div>I need your help and suggestions for my research.</div><div><br></div><div>I am working on plasma focus device simulation. I am especially interested in spherical plasma focus device simulation.</div><div><br></div><div>I am not familiar with FLASH Code but I am very interested in learning it for plasma focus device simulation.</div><div><br></div><div>Can anyone tell me if I can use FLASH Code for plasma focus device simulation ? </div><div>Is it capable of simulating plasma focus devices ?</div><div><br></div><div>I want to do the following steps if possible.</div><div>1) Simulating the dynamics of the moving plasma sheath in the device</div><div>2) Calculating the neutron yield and x-ray production during pinch phase.</div><div><br></div><div>Best regards</div><div>Yasar Ay</div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr"><div dir="ltr"><div>Eddie Hansen, PhD<br>Postdoctoral Associate</div><div>University of Rochester</div><div>607-341-6126 | Flash Center</div></div></div>
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