  Burn-UD is a hydrodynamic combustion code used to model the phase transition
of hadronic to quark matter with particular application to the interior of
neutron stars. Burn-UD models the flame micro-physics for different equations
of state (EoS) on both sides of the interface, i.e. for both the ash
(up-down-strange quark phase) and the fuel (up-down quark phase). It also
allows the user to explore strange quark seeding produced by different
processes including DM annihilation inside neutron stars. The simulations
provide a physical window to diagnose whether the combustion process will
simmer quietly and slowly, lead to a transition from deflagration to detonation
or a (quark) core-collapse explosion. Such an energetic phase transition (a
Quark-Nova) would have consequences in high-energy astrophysics and could aid
in our understanding of many still enigmatic astrophysical transients.
Furthermore, having a precise understanding of the phase transition dynamics
for different EoSs could aid further in constraining the nature of the
non-perturbative regimes of QCD in general. We hope that Burn-UD will evolve
into a platform/software to be used and shared by the QCD community exploring
the phases of Quark Matter and astrophysicists working on Compact Stars.
