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Optical Engineering

Full-field IC engine flow measurement using particle image velocimetry
Author(s): Mark Reeves; Colin P. Garner; John C. Dent; Neil A. Halliwell
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Paper Abstract

Particle image velocimetry (PIV) has been used to study the in-cylinder flow within a single-cylinder optical spark ignition engine. The engine had a standard four-valve pentroof cylinder head geometry, a compression ratio of 10.5:1, and was motored at a crank speed of 1000 rpm. Double exposed PIV images were recorded from a range of vertical and horizontal measurement planes within the engine’s glass cylinder. The images were interrogated using digital autocorrelation to give maps of two-dimensional instantaneous velocity. Successful PIV measurements have also been made under firing conditions in the unburned gas ahead of the flame front, with the engine being skip-fired using a propane/air mixture. The use of PIV for the characterization of realistic in-cylinder flow fields under a variety of inhospitable conditions has therefore been demonstrated. Limitations in the current technique are briefly discussed and methods for overcoming these limitations are described.

Paper Details

Date Published: 1 February 1996
PDF: 9 pages
Opt. Eng. 35(2) doi: 10.1117/1.601025
Published in: Optical Engineering Volume 35, Issue 2
Show Author Affiliations
Mark Reeves, Loughborough Univ. of Technology (United Kingdom)
Colin P. Garner, Loughborough Univ. of Technology (United Kingdom)
John C. Dent, Loughborough Univ. of Technology (United Kingdom)
Neil A. Halliwell, Univ. of Loughborough (United Kingdom)

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