Effects of heat loss and viscosity friction at walls on flame acceleration and deflagration to detonation transition

Huang Jin¹, Han Wenhu^{2, †}, Gao Xiangyu¹, Wang Cheng²

Convergence of relative grid resolution for W = 8 f l and Bi=7.5; x_a denotes the flame-tip position that is defined as the flame surface at the center of the channel. (a) Flame tip vs. time for different grid resolutions; (b) the number of points in the pressure gradient at tS l / f l = 189.5 .