PIV space-time resolution of flow behind blast waves

Michael J. Murphy, Ronald Adrian

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

An ultra-high speed, time-resolved particle image velocimetry (PIV) system is developed to measure velocity fields created by explosive detonators. When initiated into a gas, the detonators generate blast waves that propagate outwards from the origin of initiation at supersonic speeds. The PIV system consists of a custom eight-pulse Nd:YAG laser system and an ultra-high speed camera system comprising four dual-frame CCD cameras optically combined to share a single optic axis. The system is capable of sampling the flow field four times at up to 333 MHz or eight times at up to 8 MHz. System development is discussed, and preliminary application to the complex flow behind the blast wave from an exploding bridge wire detonator is demonstrated.

Original languageEnglish (US)
Pages (from-to)193-202
Number of pages10
JournalExperiments in Fluids
Volume49
Issue number1
DOIs
StatePublished - Jul 1 2010

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ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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