A Novel Algorithm to Estimate Soot Sheet Dimensions in Delft-Adelaide Flame

摘要

A novel method to quantify soot sheets from planar imagesof soot volume fraction is presented and demonstrated in awell-characterised turbulent, non-premixed flame, known asthe ‘Delft-Adelaide Flame’. The algorithm employed in thismethod is found to be well-suited to extract dimension informationof soot sheets with bend, irregular shape and randomorientation. Statistical assessment of the soot sheet dimensionsat the flame height that corresponds to the location of the maximummean soot volume fraction in this flame, reveals that alinear correlation exists between the soot characteristic widthand length.