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本文介绍一种计算高气压钠电弧温度分布的方法,在电弧处于局部热平衡状态的假定下,采用扩散近似来得到辐射通量密度,计算中考虑了由于热导、辐射的发射和吸收等因素所引起的能量转移。用这一方法计算了250Torr压强下钠放电的特性,并用Bartels方法对该电弧进行了实验诊断,将计算得到的温度与实验测量进行了比较。A method of calculating the temperature profile of high-pressure sodium electric arcs using the diffusion approximation for the radiation flux density is described. Account is taken of energy transfer due to thermal conduction, emission and absorption of radiation. The method has been applied to calculate the temperature profile for a sodium vapor pressure of 250 Torr and the calculated temperature distribution is compared with the result of experimental measurement.
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