Abstract:A PIV-based system has been set-up for the simultaneous measurement of the local burning velocity of premixed flames and the flame stretch due to the flame front curvature and the incoming flow strain rate. For moderately short jet flames, these measurements allow an indirect determination of the Markstein length, according to Clavin and Joulin (C-J) theory. For tall flames, the flame curvature becomes relatively large in a region around the tip where the C-J theory breaks down. However, our experiments confir… Show more
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