Nonlinear Dynamic Study of a Flickering Flame
Suvojit Ghosha, Sirshendu Mondolb, Achintya Mukhopadhyayc and Swarnendu Send
Mechanical Engineering Department, Jadavpur University, Kolkata 700 032, India.
asuvojit.ghosh@gmail.com
bsirshosona@gmail.com
camukhopadhyay@mech.jdvu.ac.in
ddrssen@mech.jdvu.ac.in
ABSTRACT
The present work focuses on studying the flickering of a candle placed in a hollow cylindrical glass tube. Variations in flame area and intensity have been studied as the oscillating parameters of the flame with a camera, and results have been found to be indicative of the presence of some well defined peaks in the power spectral density of the flame intensity. Tests have been carried out with a range of candle diameters for the same glass tube giving similar results. Fluctuations in fractal dimension of the flame structure have also been studied in the course of the work. The time series data generated by processing camera images has been studied for existence of periodicity in the signal recorded. The correlation dimension has been determined for a number of experiments to characterize the dynamics of the signal.
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