Introducing CGOLS: The Cholla Galactic OutfLow Simulation Suite
  We present the Cholla Galactic OutfLow Simulations (CGOLS) suite, a set of
extremely high resolution global simulations of isolated disk galaxies designed
to clarify the nature of multiphase structure in galactic winds. Using the
GPU-based code Cholla, we achieve unprecedented resolution in these
simulations, modeling galaxies over a 20 kpc region at a constant resolution of
5 pc. The simulations include a feedback model designed to test the effects of
different mass- and energy-loading factors on galactic outflows over kiloparsec
scales. In addition to describing the simulation methodology in detail, we also
present the results from an adiabatic simulation that tests the
frequently-adopted analytic galactic wind model of Chevalier & Clegg. Our
results indicate that the Chevalier & Clegg model is a good fit to nuclear
starburst winds in the non-radiative region of parameter space. Lastly, we
investigate the role of resolution and convergence in large-scale simulations
of multiphase galactic winds. While our largest-scale simulations do show
convergence of observable features like soft X-ray emission, our tests
demonstrate that simulations of this kind with resolutions greater than 10 pc
are not yet converged, confirming the need for extreme resolution in order to
study the structure of winds and their effects on the circumgalactic medium.
