Velocity, vorticity, and strain-rate ahead of a flame measured in an engine using particle image velocimetry

David L. Reuss, Mark Bardsley, Philip G. Felton, Christopher C. Landreth, Ronald Adrian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

25 Scopus citations

Abstract

Particle Image Velocimetry (PIV) was used to make instantaneous velocity measurements over a 24 mm by 32 mm area in a fired two-stroke cycle engine. The unburned-gas regions of the photographs were successfully interrogated adjacent to the flames and with sufficient resolution to resolve the velocity integral-length scales. A highpass filtering algorithm, different from that used in a previous motored-engine study, was implemented to allow for the arbitrary flame boundary. The large-scale vorticity in this study was considerably higher than in a previous study where a different engine was used. The large-scale normal and shear strain-rates distributions revealed only a small increase over those in the previous study, and the magnitude of the vorticity and shearstrain-rate appeared to be larger near the flame. However, the data are too limited to offer general conclusions about the flow.

Original languageEnglish (US)
Title of host publicationSAE Technical Papers
DOIs
Publication statusPublished - 1990
Externally publishedYes
EventInternational Congress and Exposition - Detroit, MI, United States
Duration: Feb 26 1990Mar 2 1990

Other

OtherInternational Congress and Exposition
CountryUnited States
CityDetroit, MI
Period2/26/903/2/90

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ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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