【摘要】 针对合能材料的应用和输电线路防火提出了电热丝点火的三个物理模型及相应的数学模型．通过对这三种情况下热点火问题的研究，求得了各模型热点火的临界判据，并讨论了各参数对点火性能的影响．更多还原

【Abstract】 Three one-dimensional thermal models of ignition by means of a hot wire have been studied. The common assumptions of (a) considering only the steady-state solutions, (b) neglecting reactant consumption, are employed. Critical values of some importnat parameters for the three models of thermal ignition are obtained in exact form of the Arrhenius reaction-rate law. The effectraints on criticality are discussed.更多还原