Diagnostics for liquid dispersion due to a high-speed impact with accident or vulnerability assessment application

Richard A. Jepsen, Timothy O'Hern, Byron Demosthenous, Ed Bystrom, Mark Nissen, Edward Romero, Sam S. Yoon

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The high-speed impact and subsequent dispersion of a large liquid slug is of interest for assessing vulnerability of structures when subjected to such an event. The Weber number associated with such liquid impacts is generally between 105 and 108. Because of the experiment scale and destructive nature of these high-energy impacts, most traditional diagnostics are difficult to implement. Therefore, unique diagnostics were employed in several tests to gather information on impact force, spreading instability, slug break-up, ejection velocity, droplet deformation and spray characteristics. Measurement techniques discussed here include high-speed photometrics, particle image velocimetry (PIV), TrackEye particle analysis, speckle correlation, single-pass schlieren imaging, phase Doppler particle analyzer (PDPA) and load cell measurements as applied to large-scale, high-speed liquid impacts.

Original languageEnglish
Article number025401
JournalMeasurement Science and Technology
Volume20
Issue number2
DOIs
Publication statusPublished - 2009

Keywords

  • Diagnostics
  • Dispersion
  • Impact
  • Vulnerability assessment

ASJC Scopus subject areas

  • Instrumentation
  • Engineering (miscellaneous)
  • Applied Mathematics

Fingerprint Dive into the research topics of 'Diagnostics for liquid dispersion due to a high-speed impact with accident or vulnerability assessment application'. Together they form a unique fingerprint.

  • Cite this