Modeling of a hybrid direct/indirect-drive scheme for producing complex hydrodynamic profiles involving copropagating shocks *

Co-propagating shocks are important in many HED situations, yet are significantly more challenging to produce than counter-propagating shocks and thus remain understudied. Los Alamos has developed an experimental platform, using sequential direct and indirect drive in a single halfraum, to create such co-propagating shocks and study their effects. This talk will discuss aspects of the modeling capability developed to support the experimental platform. Since the hybrid drive scheme requires the second shock to form under dynamically-evolving plasma conditions, there is significant demand on the capacity of simulations for capturing the evolution of the shocks, for example in the physics of the laser interaction with the system and the transport mechanisms from the deposition region to the shock front. We will discuss some of these considerations, as well as our current predictive capability.