<div dir="ltr">Dear Tomek, <div><br></div><div>Thanks for your reply. </div><div>It may be a good start for me then to simulate plasma evolution in the device.</div><div>It seems that it's worth spending time to learn how to use FLASH Code. </div><div><br></div><div>Best regards</div><div>Yasar</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Apr 7, 2021 at 1:04 AM Tomasz Plewa <<a href="mailto:tplewa@fsu.edu">tplewa@fsu.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>
<font size="+1"><font face="monospace">Dear Yasar -<br>
<br>
MHD equations, as solved by FLASH, generally apply to
collisional conditions. Therefore, if your problem is
collisional, the plasma evolution could be --in principle--
computed with FLASH.<br>
<br>
As for neutronics and xray diagnostics, and as someone already
observed, </font></font><font size="+1"><font face="monospace"><font size="+1"><font face="monospace">you would need to develop
custom modules.<br>
<br>
</font></font>Tomek<br>
--</font></font><br>
<div>On 4/6/21 12:27 PM, Yasar Ay wrote:<br>
</div>
<blockquote type="cite">
<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>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>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>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>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>
</blockquote>
</div>
</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>
</blockquote>
</div>
</blockquote>
<br>
</div>
</blockquote></div>