This is my current project - we use the Castro hydrodynamics simulation codes to study double detonation Type Ia supernovae. In the double detonation model, a detonation begins in the accreted helium layer on the surface of a low mass white dwarf, driving a compression wave that converges at the center and ignites the carbon-oxygen core. Our aim is to assess the likelihood and characteristics of a double detonation based upon various initial factors such as chemical composition, core and accretion layer masses, initial helium explosion parameters, and simulation spatial resolution. Most notably, we find that our codes replicate the results of the previously published scientific literature at coarser spatial resolutions, which can potentially save computational cost for future researchers.