Re: [mesa-users] Curious generation of Hydrogen - Interplay of convection and nuclear burning

[Bill P. <pa...@ki...>]

Hi,


On Feb 13, 2013, at 12:09 PM, Jan-Torge Schindler wrote:

> There is no process in my current understanding that would generate Hydrogen in a Helium flash.

Probably no "physical" process.   But you are running a numerical simulation, and there are endless ways for
it to do non-physical things!   So when you see something like this, your first guess should be that
there are numerical problems.  And the first thing to try is to see what happens if you use smaller timesteps
and/or small mesh cells.  Many (most?) numerical problems can be fixed by using more timesteps
and more grid points.

Let us know what you find.

Cheers,
Bill