Author(s): LOU Bo, XU Jianhong, LIN Zhenguan, XU Yi, School of Electric Power, South China University of Technology
Pages: 2707-2712
Year: 2015 Issue:  7
Journal: Journal of Central South University of Technology
Keyword:  moving fire; flame inclination; flame force field; inertial force;
Abstract: The image series of the diffusion flame of moving fire on acceleration motion were acquired by using high-speed video camera and the flame inclination characteristic was studied. The results show that flame inclination increase undergoes three stages of changing velocity in non-inertial system. It is not in same direction between flame resultant and flame inclination. In non-inertial system, the flame resultant angle shifts first to the flame inclination and forms an intersection angle. Moreover, the higher acceleration flame is, the more sluggish flame inclination will be. With the increase of flame speed, the air resistance increases and the intersection angle decreases, and the flame resultant angle and the flame inclination finally approach to 90°.