[FLASH-USERS] value of Ye for single species runs

[John ZuHone]

My bad, I looked in the wrong directory. Ernesto is right. Sorry about that! 

> On Oct 2, 2015, at 4:45 PM, Ernesto Zurbriggen <ernesto at mail.oac.uncor.edu> wrote:
> 
> Jon,
> looking at the end of the subroutine Eos/EosMain/Eos_getAbarZbar.F90 you can see for a single species run Ye=Zbar/Abar too. And I think that is not a stub implementation for the single-species gamma-law EOS.
> 
> On the other hand, if you turn on the thermal conduction managed by Diffuse/Split or Diffuse/Unplit units, I think the runtime parameter "addThermalFlux" must be false. On the contrary, you might be taking into account thermal conduction twice, within the Diffuse unit and Hydro unit via hy_uhd_addThermalFluxes.F90
> 
> Best!
> 
> 
> Quoting John ZuHone <jzuhone at space.mit.edu <mailto:jzuhone at space.mit.edu>>:
> 
>> Just for reference, Jon and I have been discussing this off-list.  The single-species gamma-law EOS only has a stub for this subroutine. I suggested copying the Eos_getAbarZbar stub to the  simulation directory and changing it to set the quantities to whatever he needs, but as I am not familiar with this particular  diffusion module I think someone with more knowledge should comment  if this is the right way to go.
>> 
>>> On Oct 2, 2015, at 3:32 PM, Slavin, Jonathan  <jslavin at cfa.harvard.edu> wrote:
>>> 
>>> Hi,
>>> 
>>> I have been doing runs trying to simulate the evaporation of  interstellar clouds via thermal conduction.  The runs have been working but the clouds are evaporating a bit faster than I  expected.  This led me to look into the implementation of flux limitation.  Looking at diff_advanceTherm there is a call to  Eos_getAbarZbar, which returns the value of Ye, but it's unclear what value will be returned for a single species run.  I have been  setting eos_singleSpeciesA and that seems to work as expected.  I  know in multispecies runs Ye = zbar/abar, so I wonder if its  1/abar.  Can anyone help me out on this?
>>> 
>>> Regards,
>>> Jon
>>> 
>>> --
>>> ________________________________________________________
>>> Jonathan D. Slavin                 Harvard-Smithsonian CfA
>>> jslavin at cfa.harvard.edu <mailto:jslavin at cfa.harvard.edu> <mailto:jslavin at cfa.harvard.edu <mailto:jslavin at cfa.harvard.edu>>       60  Garden Street, MS 83
>>> phone: (617) 496-7981       Cambridge, MA 02138-1516
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>>> ________________________________________________________
>>> 
>> 
>> 
> 
> 
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