Osaka Feedback Model. II. Modeling Supernova Feedback Based on High-resolution Simulations

Feedback from supernovae (SNe) is an essential mechanism that self-regulates the growth of galaxies, and a better model SN feedback still needed in galaxy formation simulations. In first part this paper, using Eulerian hydrodynamic code Athena++, we find universal scaling relations for time evolution momentum radius superbubble, when are scaled by those at shell-formation time. second develop based on Athena++ simulation results utilizing Voronoi tessellation around each star particle, implement it into GADGET3-Osaka smoothed particle code. Our was demonstrated to be isotropic conservative terms energy momentum. We examined mass/energy/metal loading factors our stochastic thermal produced galactic outflow carries metals high above plane but with weak suppression formation. Additional mechanical further suppressed brought agreement observations Kennicutt--Schmidt relation, all being within uncertainties observed data. argue both necessary individual bubble unresolved.