Effects of heat loss and viscosity friction at walls on flame acceleration and deflagration to detonation transition
Huang Jin1, Han Wenhu2, †, Gao Xiangyu1, Wang Cheng2
       

Flame tip position as a function of time for different channel widths and Bi numbers. D, DCJ, and c0 are respectively flame speed, Chapman–Jouguet (CJ) velocity, and sonic speed in unreacted mixture. The lines in panel (b) correspond to the same color in panel (a).