Abstract The dynamics of reacting droplets of the monopropellants nitromethane (NM) and isopropyl nitrate (IPN) are compared to those of methanol. Single droplets of these three fuels were burned in steady flow high-temperature conditions, produced by a McKenna flat-flame burner. Coherent anti-Stokes Raman scattering (CARS) thermometry was employed to characterize the temperature of the flow-field experienced by the droplets. Ignition delay times and droplet burning rates were obtained for droplets with initial diameters ranging between 0.4 and 1.4 mm. Droplet dynamics such as deformation, puffing, stripping and micro-explosions are qualitatively discussed. Lastly, the D2 law and the hybrid combustion model are applied to IPN and NM droplets, and the experimental mass burning rates are compared to theoretical predictions.

中文翻译：

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高温准稳态条件下单一硝基甲烷和硝酸异丙酯单组元液滴的点火燃烧特性

摘要 将单推进剂硝基甲烷 (NM) 和硝酸异丙酯 (IPN) 的反应液滴动力学与甲醇的反应动力学进行了比较。这三种燃料的单个液滴在稳定流动的高温条件下燃烧，由 McKenna 平焰燃烧器产生。相干反斯托克斯拉曼散射 (CARS) 温度计用于表征液滴所经历的流场的温度。获得初始直径在 0.4 和 1.4 毫米之间的液滴的点火延迟时间和液滴燃烧速率。定性地讨论了液滴动力学，如变形、膨化、剥离和微爆炸。最后，将 D2 定律和混合燃烧模型应用于 IPN 和 NM 液滴，并将实验质量燃烧率与理论预测进行比较。