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Session: Instability and Transition 1
Session starts: Tuesday 25 August, 10:30
Presentation starts: 10:45
Room: Room B

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Brandon Wilson (Los Alamos National Laboratory)
Ricardo Mejia-Alvarez (Los Alamos National Laboratory)
Kathy Prestridge (Los Alamos National Laboratory)

Abstract:
We present an experimental study of the effects of shock intensity and initial conditions on the evolution of Richtmyer-Meshkov Instabilities (RMI). This study is carried out in a vertical shock tube with a single interface of sulfur-hexafluoride and air. We use combined particle image velocimetry (PIV) and planar laser induced fluorescence (PLIF) to obtain simultaneous measurements of velocity and density. These measurements enable us to determine single- and multi-point statistics of vector, scalar, and combined fields. We use these statistical descriptors to study the evolution of turbulence mixing in RMIs under different Mach numbers and initial conditions.