Abstract
Visualization of flame front shape of high pressure turbulent premixed flame by using laser tomograpy was made for the purpose of exploring the influence of the turbulence intensity and ambient pressure on the turbulent flame structure. The high pressure combustion chamber was used, where the continuous combustion was possible. In order to quantify the complexity of the flame front shape, the fractal analysis was made. As a result, the fractal dimension increased with increasing the turbulence intensity and ambient pressure, and it was saturated to about 2.15.
