阵列燃烧诱发火焰融合的判据及其可行性研究

为了探究一种判定多火源等间距阵列燃烧时火源参与火焰融合程度的判据，基于多火源等间距阵列燃烧试验，获得n×n(n取3~7）阵列各火源层在不同火源间距条件下的无量纲平均燃烧速率，采用自定义拟合的方法，拟合出各火源层的无量纲平均燃烧速率随无量纲火源间距的变化曲线，将所得拟合曲线与火源参与火焰融合的临界值曲线相交，便可得到各火源层的临界无量纲火源间距值。分析该值，发现其与火源层数呈良好的线性关系，且此线性直线与试验结果吻合度较高。从而，获得一种应用无量纲火源间距判定阵列火源参与火焰融合程度的简易判据。

Study on criterion for flame merging induced in array combustion and its feasibility

In order to explore a criterion about the extent of fire source participating in flame merging induced in multi-source and equal space fire array burning, the relative experiments were done to obtain the dimensionless average burning rate of fire source layers under different fire spacing conditions in n×n (n was 3-7）array. By means of custom fitting, the variation curve of dimensionless average burning rate of fire source layers in fire array versus the dimensionless fire source space was fitted, and the critical values of dimensionless fire source space were obtained by crossing the fitted curve and the critical curve when the fire sources participating in flame merging. It showed that by varying fire arrays, the critical value of dimensionless fire source space varies linearly versus the number of fire source layers, and the correlativity inosculates with the trial value on the whole. Thus, a new simple criterion was obtained, which can judge the extent of fire source participating in flame merging induced in fire array by applying dimensionless fire source space.