高导极限下的振荡Ponomarenko发电机
Oscillating Ponomarenko dynamo in the highly conducting limit
摘要：
本文认为发电机行动顺利螺旋流在圆柱形的几何形状，否则被称为波诺马连科发电机，与周期性的时间依赖性。一个渐近框架的开发，使增长率和频率在高传导限制的大磁雷诺数，当模式往往是本地化的共振流表面。通过数值模拟验证了该理论的正确性。
英文摘要：
This paper considers dynamo action in smooth helical flows in cylindrical geometry, otherwise known as Ponomarenko dynamos, with periodic time dependence. An asymptotic framework is developed that gives growth rates and frequencies in the highly conducting limit of large magnetic Reynolds number, when modes tend to be localized on resonant stream surfaces. This theory is validated by means of numerical simulations.
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