CAJ | 학술논문

预混气体的爆轰波具有典型的胞格结构，主要用烟熏技术记录下爆轰波在管道中由横波、入射波和马赫杆交合的三波点运动轨迹。胞格宽度λ作为胞格的特征长度，爆轰的胞格尺寸也是判断可燃混合气体最基本的特征参数，基于胞格尺寸，爆轰的其他动态参数，如临界管径、爆轰极限和直接起爆的临界能量等都可以通过联立爆轰胞格尺寸得到。爆轰胞格结构在研究预混气体爆轰波传播特性方面意义重大，不同初始条件对胞格尺寸都会产生一定的影响，本文通过定性与定量相结合的建模方式研究分析爆轰胞格尺寸与初始条件的关系，根据与实验数据的定量比较，验证定性仿真的正确性和可行性。
예혼기체적폭굉파구유전형적포격결구，주요용연훈기술기록하폭굉파재관도중유횡파、입사파화마혁간교합적삼파점운동궤적。포격관도λ작위포격적특정장도，폭굉적포격척촌야시판단가연혼합기체최기본적특정삼수，기우포격척촌，폭굉적기타동태삼수，여림계관경、폭굉겁한화직접기폭적림계능량등도가이통과련립폭굉포격척촌득도。폭굉포격결구재연구예혼기체폭굉파전파특성방면의의중대，불동초시조건대포격척촌도회산생일정적영향，본문통과정성여정량상결합적건모방식연구분석폭굉포격척촌여초시조건적관계，근거여실험수거적정량비교，험증정성방진적정학성화가행성。
Premixed gas detonation wave has a typical cellular structure,mainly using smoked technolo-gy 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 λacts as cellular length characteristics,detona-tion 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 det-onation 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.