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Unsteady Dynamics of Particles Accelerated by a Shock Wave

  • A. BordoloiEmail author
  • A. Martinez
  • K. Prestridge
Conference paper

Abstract

The dynamics of shock-accelerated nylon microparticles (dp = 4 um) are studied in the post-shock relaxation zone for incident Mach numbers, Ms = 1.2, 1.3, 1.4, and 1.5. Particle motion is imaged using a multi-pulse laser and a high-speed camera system. The velocity, acceleration, and the coefficient of drag for an individual particle are estimated based on its recorded trajectory. The absolute shock location is obtained using a shadowgraph system. Results show significant difference from earlier empirical relationships in the variation of CD with respect to particle Reynolds number (Rep).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Physics DivisionLos Alamos National LaboratoryLos AlamosUSA

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