[FLASH-USERS] Burn Network Species Selection

[Aaron Froese]

Hi Raph,

He3 was a typo, I meant He4.  I'm trying to develop my own burn network for fusion experiments (D,T,He3,He4,Li6,Li7), so I need to understand how the existing burn networks function.  The bn_networkRates.F90 file includes the following reactions for He4, C12 and O16.

!!  reactions are
!!  r1616 = o16+o16      rcag  = c12(ag)
!!  r1212 = c12+c12      r3a   = 3a-c12       rg3a  = c12-3a
!!  roga  = o16(ga)      roag  = o16(ag)
!!  rcpg  = c12(pg)      ropg  = o16(pg)

And the Config file has the following section commented out.

# Three gases needed in simulation, but these are defined in Burn module
#SPECIES HE4
#SPECIES C12
#SPECIES O16

Considering that the Cellular problem produces oxygen from an initial population of carbon only, I would expect that to remain the case even when all the heavier elements are removed, no?

Aaron
________________________________________
From: Hix, William Raphael [raph at ornl.gov]
Sent: Tuesday, September 04, 2012 9:21 AM
To: Aaron Froese
Cc: flash-users at flash.uchicago.edu
Subject: Re: [FLASH-USERS] Burn Network Species Selection

Aaron-

What reactions would you expect in a network that contains only He3, C12 and O16?

                                                Raph

On Aug 31, 2012, at 7:17 PM, Aaron Froese wrote:

> Hi All,
>
> Is there a way to activate/deactivate the species used by a burn network on the fly, short of writing new burn networks for each desired mix of species?  I removed all the species except for he3, c12, and o16 from the Config file in the Aprox13 network, but then no reactions occurred at all.  The entire domain in the Cellular problem remained c12 after the shock passed.
>
> Thanks,
> Aaron

------------------------------------------------------------------------
William Raphael Hix                       Email:  raph at ornl.gov
Oak Ridge National Laboratory             Voice:  (865) 574-4716
P.O. Box 2008                               Fax:  (865) 576-8746
Oak Ridge, TN 37831-6354