电磁脉冲加热Debye媒质的快速计算

本文提出了一种计算电磁脉冲加热Debye媒质的快速算法。从麦克斯韦方程组和Debye方程出发，重新定义了Debye媒质中的瞬态耗散功率。该定义能有效避免传统定义中瞬态耗散功率为负的情况。通过时间尺度变换，把电磁场的计算和热场的计算统一到同一时间尺度下，这样就可以节省大量的计算时间。另外，研究了长时间脉冲加热的效率和均匀性。结果表明，在同样的重复频率下，脉冲加热的效率与均匀性均低于连续微波。

Fast Computing Algorithm for Electromagnetic Pulse Heating of Debye Media

We present a fast computing time-domain algorithm aiming at investigating the efficiency and uniformity of electromagnetic pulse heating of Debye media. First, a formula of transient power dissi- pation of Debye media is redefined. Then, a fast computing time-domain algorithm is developed to over-come the problem of long thermal process and rigor time steps of computing electromagnetic field for EMP heating. By using time-scaling transformation, the long thermal＂ process can be compressed into dozens of periods of pulses as to save computing time. Finally, examples of EMP heating of Debye media with peri-odic pulses are studied. The results reveal that in comparison with continuous microwave heating, EMP heating is unable to improve the heating uniformity and efficiency.