Premixed gas detonation wave has a typical cellular structure

mainly using smoked technology to record the triple point trajectory of the detonation wave in the pipeline by the shear wave

incident wave and Mach stem intercourse. Detonation cell width λ acts as cellular length characteristics， detonation cell size also can be used to determine the most basic characteristic parameters of the combustible gas mixture

based on cell size

other detonation dynamic parameters

such as the critical pipeline diameter

detonation limit and direct initiation critical energy and so on all can be obtained through the simultaneous detonation cell size. Detonation cellular structure is of great significance in the study of premixed gas detonation wave propagation characteristics

different initial conditions will have some impact on the cell size; this paper studies the relationship among detonation cells size and the initial conditions through the combination of qualitative and quantitative modeling

according to the quantitative comparison with the experimental data to verify the correctness and feasibility of qualitative simulation.