# Unresolved Low Mach Number Cooling Test

**Note: the plots are in log-linear so sharp dips are from negative values.
Also the plot here is only a portion of the whole grid and although it is not shown, the final upstream values for the temperature and pressure are similar to the upstream values of the input steady state.**

This plot shows the steady state solution in black for a shock with a Mach number of 8.56. The cooling curve is a simple power law with an exponent of 2 and a coefficient of 1.23786e-34. The steady state is then put into the code as initial conditions with a resolution of 5 zones across the 2.5e17 cm (only 2 across the input cooling length). The red curve shows the state of the shock after .2 mega years. The epsilons were all set to zero and the time step was a factor of ten smaller than the cooling time.