  The present study investigates the shock wave interactions involving
stationary and moving wedges using a sharp interface immersed boundary method
combined with a fifth order weighted essentially non oscillatory (WENO) scheme.
Inspired by Schardins problem, which involves moving shock interaction with a
finite triangular wedge, we study influences of incident shock Mach number and
corner angle on the resulting flow physics in both stationary and moving
conditions. The present study involves three incident shock Mach numbers (1.3,
1.9, 2.5) and three corner angles (60deg, 90deg, 120deg), while its impact on
the vorticity production is investigated using vorticity transport equation,
circulation, and rate of circulation production. Further, the results yield
that the generation of the vorticity due to the viscous effects are quite
dominant compared to baroclinic or compressibility effects. The moving cases
presented involve shock driven wedge problem. The fluid and wedge structure
dynamics are coupled using the Newtonian equation. These shock driven wedge
cases show that wedge acceleration due to the shock results in a change in
reflected wave configuration from Single Mach Reflection (SMR) to Double Mach
Reflection (DMR). The intermediary state between them, the Transition Mach
Reflection (TMR), is also observed in the process. The effect of shock Mach
number and corner angle on Triple Point (TP) trajectory, as well as on the drag
coefficient, is analyzed in this study.
