Further studies of flame movement and pressure development in an engine cylinder

Marvin, Charles F , Jr Wharton, Armistead Roeder, Carl H
naca-report-556
1937


This report describes an investigation using a stroboscopic apparatus for observing flame movement through a large number of small windows distributed over the head of a spark-ignition engine in following flame spread with combustion chambers of different shapes at two engine speed and for a variety of spark-plug locations including single and twin ignition. The principal factors influencing flame movement in the engine are discussed, and the lack of reliable information regarding their separate effects upon the structure of the flame and its speed of propagation are emphasized.

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http://naca.central.cranfield.ac.uk/reports/1937/naca-report-556.pdf