从实验和数值模拟两方面探讨了甲醇的热点火特性。实验中应用快速压缩机得到了温度与点火延迟期的关系。计算中采用了基元化学反应动力学模型,给出了压力、温度、产物及主要中间反应体的变化历程。对助燃剂二叔丁基过氧化物的活化作用进行了理论分析。 The hot ignition characteristics of methanol were discussed from two aspects of experiment and numerical simulation. In the experiment, the relationship between temperature and ignition delay was obtained by using a rapid compressor. In the calculation, the elementary chemical reaction kinetic model was adopted, and the pressure, temperature, products and the process of the main intermediate reactants were given. The activation of oxidizer di-tert-butyl peroxide was theoretically analyzed.