PIV space-time resolution of flow behind blast waves

Michael J. Murphy, Ronald Adrian

Research output: Contribution to journalArticle

15 Citations (Scopus)

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 2010

Fingerprint

detonators
blasts
particle image velocimetry
Velocity measurement
High speed cameras
CCD cameras
supersonic speed
Laser pulses
Optics
Flow fields
high speed cameras
Gases
Wire
Sampling
Lasers
YAG lasers
flow distribution
velocity distribution
sampling
high speed

ASJC Scopus subject areas

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

Cite this

PIV space-time resolution of flow behind blast waves. / Murphy, Michael J.; Adrian, Ronald.

In: Experiments in Fluids, Vol. 49, No. 1, 07.2010, p. 193-202.

Research output: Contribution to journalArticle

Murphy, Michael J. ; Adrian, Ronald. / PIV space-time resolution of flow behind blast waves. In: Experiments in Fluids. 2010 ; Vol. 49, No. 1. pp. 193-202.
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