  This work presents recent the progress in the development of the Concurrent
Atomistic-Continuum (CAC) method for coarse-grained space- and time-resolved
atomistic simulations of phonon transport. Application examples, including heat
pulses propagating across grain boundaries and phase interfaces, as well as the
interactions between phonons and moving dislocations, are provided to
demonstrate the capabilities of CAC. The simulation results provide visual
evidence and reveal the underlying physics of a variety of phenomena including:
phonon focusing, wave interference, dislocation drag, interfacial Kapitza
resistance caused by quasi-ballistic phonon transport, etc. A new method to
quantify fluxes in transient transport processes is also introduced.
