[mesa-users] Enabling diffusion in Mesa-r8118

Émile Jetzer emile.jetzer at mail.mcgill.ca
Fri May 20 22:27:17 EDT 2016

Thanks! I player around with different values of `diffusion_dt_limit`, & found that setting it to `1d3` works well. If I set the value too low, like 1 or 0, I have to start the simulation without the `do_element_diffusion` flag for the first few steps & then activite it & keep going with `./re`. Is there a known reason for this? MESA seemed to be concerned with the value of `log(dt/year)` which might be too close to 0 when `diffusion_dt_limit` is too small? 
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