Cholla_PM: Ramses and Enzo Comparison

Here is the comparison for the average temperature in a cosmological simulation.All codes are using the 4th order scheme for the potential gradient.

Cholla is using PPMP HLLC and SIMPLE, \(\beta=0\).

Now using Cooling and UV Background:

Power Spectrum

Here is the power spectrum for Cholla and Enzo without using Cooling/UV:

\(\eta=0.005\)

\(\eta=0.010\)

\(\eta=0.035\)

\(\eta=0.030\) and \(\beta=0.2\):

These where the parameters that best matched Ramses: Gas is much colder.

Now using Cooling and UV Background:

\(\eta=0.010\)

\(\eta=0.035\)