Flame motion in the middle and late combustion stages of a high-speed direct-injection diesel engine was studied by computerised image-analysis of high-speed photographs. By using a two-dimensional cross-correlation method based on the flame intensity distribution a velocity vector field was obtained, the consistency of which was improved by introducing element rotation into the cross-correlation method. The flow-fields obtained reveal the action of reverse squish and swirl, and these results are discussed in the paper.
A Study of Diesel Flame Movement by Using the Cross Correlation Method
Sae Technical Papers
International Congress & Exposition ; 1993
1993-03-01
Aufsatz (Konferenz)
Englisch
A study of diesel flame movement by using the cross correlation method
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