<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Jon,<div class=""><br class=""></div><div class="">I’m not an expert on the multi-temperature gamma, but I should note that the various EOS modes:</div><div class=""><br class=""></div><div class="">MODE_DENS_TEMP</div><div class="">MODE_DENS_EI</div><div class="">MODE_DENS_PRES</div><div class=""><br class=""></div><div class="">have to do with telling the EOS which quantities you have and which ones you want, so for example MODE_DENS_TEMP says “I have temperature and density and I want internal energy and pressure”, and so on. They all refer to the same EOS calculation, it just depends on which variable was most recently updated. For example, you may call the EOS with MODE_DENS_TEMP in Simulation_initBlock if you initialize density and temperature, but Hydro is going to be calling it with MODE_DENS_PRES after it updates the pressure term. </div><div class=""><br class=""></div><div class="">Best,</div><div class=""><br class=""></div><div class="">John</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Sep 16, 2015, at 12:10 PM, Jonathan Slavin <<a href="mailto:jslavin@cfa.harvard.edu" class="">jslavin@cfa.harvard.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Okay. I see that now. Sorry to be so blind. I was confused by the table that indicates cases where the temperatures are assumed to be all equal (which is odd for a multi-temperature gamma). So, any recommendations for a minimal multi-temperature run? Is there any significant difference between the various 1-T modes? (For example MODE_DENS_TEMP, MODE_DENS_EI, etc.)</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jon</div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Wed, Sep 16, 2015 at 11:56 AM, John ZuHone <span dir="ltr" class=""><<a href="mailto:jzuhone@space.mit.edu" target="_blank" class="">jzuhone@space.mit.edu</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="">Hi Jon,<div class=""><br class=""></div><div class="">Unless I am incorrect this section refers to the “multi-temperature” Gamma EOS. Were you trying to use that or just the standard single-temperature version?</div><span class="HOEnZb"><font color="#888888" class=""><div class=""><br class=""></div><div class="">John</div><div class=""><br class=""></div></font></span><div class=""><div class=""><blockquote type="cite" class=""><span class=""><div class="">On Sep 16, 2015, at 11:52 AM, Jonathan Slavin <<a href="mailto:jslavin@cfa.harvard.edu" target="_blank" class="">jslavin@cfa.harvard.edu</a>> wrote:</div><br class=""></span><div class=""><div class="h5"><div class=""><div dir="ltr" class=""><div class="gmail_extra"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi Dean,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">But if you look in section 15.4.1 it states something different: </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">"This EOS can include contributions from radiation, partially or completely ionized nuclei, and electrons. The desired (constant) ionization level $ {\bar Z}$ of the nuclei should be specified with the eos_singleSpeciesZ runtime parameter."</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jon</div><br class=""><div class="gmail_quote">On Wed, Sep 16, 2015 at 11:30 AM, Dean Townsley <span dir="ltr" class=""><<a href="mailto:Dean.M.Townsley@ua.edu" target="_blank" class="">Dean.M.Townsley@ua.edu</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF" class="">Hi Johnathan,<br class="">
<br class="">
The gamma-law EOS is just a simple ideal gas as described in section
15.2 of the user's guide:<br class="">
<a href="http://flash.uchicago.edu/site/flashcode/user_support/flash4_ug_4p3/node22.html#SECTION06320000000000000000" target="_blank" class="">http://flash.uchicago.edu/site/flashcode/user_support/flash4_ug_4p3/node22.html#SECTION06320000000000000000</a><br class="">
<br class="">
As you can see from the expressions there, zbar is not used at all.
You should set abar so that these expressions give what you expect.
This is what John Zuhone and Tomek I believe are suggesting.<br class="">
<br class="">
Hopefully that helps clarify,<br class="">
Dean</div></blockquote></div><br class=""><br class=""><br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class="">________________________________________________________<br class="">Jonathan D. Slavin Harvard-Smithsonian CfA<br class=""><a href="mailto:jslavin@cfa.harvard.edu" target="_blank" class="">jslavin@cfa.harvard.edu</a> 60 Garden Street, MS 83<br class="">phone: <a href="tel:%28617%29%20496-7981" value="+16174967981" target="_blank" class="">(617) 496-7981</a> Cambridge, MA 02138-1516<br class="">cell: <a href="tel:%28781%29%20363-0035" value="+17813630035" target="_blank" class="">(781) 363-0035</a> USA<br class="">________________________________________________________<br class=""><br class=""></div></div></div></div>
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</div></div></div></blockquote></div><br class=""></div></div></blockquote></div><br class=""><br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div class="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class="">________________________________________________________<br class="">Jonathan D. Slavin Harvard-Smithsonian CfA<br class=""><a href="mailto:jslavin@cfa.harvard.edu" target="_blank" class="">jslavin@cfa.harvard.edu</a> 60 Garden Street, MS 83<br class="">phone: (617) 496-7981 Cambridge, MA 02138-1516<br class="">cell: (781) 363-0035 USA<br class="">________________________________________________________<br class=""><br class=""></div></div></div></div>
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