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对肼、一甲基肼、偏二甲肼的亚临界一超临界蒸发／分解燃烧进行了研究，计算了肼类燃料滴在不同压力下液滴温度和蒸发速度的变化历程，计算了蒸发常数、传热数和传质数，其结果和实验数据是吻合的。本文不但考虑了肼类燃料滴的亚临界蒸发／分解燃烧，还考虑到了其超临界蒸发／分解燃烧，并对达到超临界工况时的界限参数进行了计算。
The subcritical-supercritical vaporization / decomposition combustion of hydrazine, monomethylhydrazine, and unsymmetrical dimethyl hydrazine was studied. The change course of the droplet temperature and the evaporation velocity of the hydrazine fuel droplets under different pressures was calculated. The evaporation constant , Heat transfer number and mass transfer number, the result is consistent with the experimental data. In this paper, not only the subcritical Evaporative / Decomposition combustion of hydrazine fuel droplets, but also the supercritical Evaporative / Decomposition combustion of the hydrazine fuel droplets are considered, and the limit parameters for the supercritical conditions are calculated.