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对电磁脉冲加热Debye媒质进行了数值计算。从麦克斯韦方程组和Debye方程出发,我们修正了Debye媒质中的瞬态耗散功率的公式。该公式能有效避免传统定义中可能出现的瞬态耗散功率为负的情况。通过时间尺度变换,长的加热过程可以得到极大地压缩。在以前工作中,一般只能计算数十个脉冲周期,而通过该算法,则可以处理上亿个脉冲周期。另外,我们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。
Debye medium was heated by electromagnetic pulse. Starting from the Maxwell equations and Debye equations, we modify the formula for the transient dissipated power in the Debye medium. The formula can effectively avoid the traditional definition of transient power dissipation may be negative. By time scale conversion, the long heating process can be greatly compressed. In the past work, generally can only count dozens of pulse period, but through this algorithm, you can handle hundreds of millions of pulse period. In addition, we studied the efficiency and uniformity of pulsed heating for long periods of time. The results show that under the same repetition frequency, the efficiency and uniformity of pulse heating are lower than that of continuous microwave.