Abstract
Behavior of a candle flame and gas jet diffusion flames under super gravitational fields was experimentally investigated. To realize super gravitational fields in a laboratory, a spin tester was employed. The influences of super gravity on flame length and width were measured by using a video recording system installed on the spin tester. It was found that the flame length and width of a candle or a jet flame decreased with an increase in gravity. It is explained by an increase of natural convection flow that causes a higher combustion rate of a laminar diffusion flame. Furthermore, the results showed that a decrease in length of the candle flame appeared more obviously than that of the gas diffusion flame. It suggests that a super gravitational field also influenced the fuel supplement through a candle wick.
