中文摘要：

A 联合了计算、试验性的调查在 coflow 乙烯空气散开火焰检验温度和煤烟体积部分被介绍。数字模拟被使用相对详细的煤气阶段的化学和热的建筑群进行，运输性质结合了一个半实验的二方程的煤烟模型。热放射用分离纵标方法被计算。处理技术和一个 decoupled 重建方法的一幅图象被用来同时测量温度和煤烟卷部分的分布。结果证明为温度的最大的错误不在预言和测量之间超过 10% 。并且最大的错误为在预言和测量之间的煤烟体积部分是 6.9% 。另外的模拟被执行在散开火焰和煤烟形成上探索全球等价比率的效果。煤烟形成与减少增加的结果显示 coflow 空气速度。并且在每种情况中的煤烟形成出现在环形的区域，当 coflow 空气被减少时，温度在哪儿从大约 1 000 K 到 2 000 K 和侧面，变得更高、更宽。

英文摘要：

A combined computational and experimental investigation to examine temperature and soot volume fraction in coflow ethylene-air diffusion flames was presented. A numerical simulation was conducted by using a relatively detailed gas-phase chemistry and complex thermal and transport properties coupled with a semi-empirical two-equation soot model. Thermal radiation was calculated using the discrete ordinates method. An image processing technique and a decoupled reconstruction method were used to simultaneously measure the distributions of temperature and soot volume fraction. The results show that the maximum error for temperature does not exceed 10% between the prediction and the measurement. And the maximum error is 6.9% for soot volume fraction between prediction and measurement. Additional simulations were performed to explore the effects of global equivalence ratio on diffusion flames and the soot formation. The results display that the soot formation increases with decreasing the coflow air velocity. And the soot formation in each case appears in the annular region, where the temperature ranges from about 1 000 K to 2 000 K and the profile becomes taller and wider when the coflow air is decreased.