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应用电磁场理论及数值计算,对远场涡流中的场相速特性作了数值仿真和理论分析,并与电磁波中的相速特征作了比较和讨论,说明远场涡流是属于扩散现象中的一种似波行为.
The theory of electromagnetic field and numerical calculation are used to simulate and theoretically analyze the field-phase velocity characteristics of the far-field vortex flow. The phase-velocity characteristics in the electromagnetic wave are compared and discussed. It is shown that the far-field vortex flow is one of the diffusion phenomena Kind of wave behavior.