电磁力控制流体边界层的电磁分析  

Electromagnetic analysis of flow boundary layer control by electromagnetic force

作　　者：常雪宇 彭爱武[1,2] 赵凌志 CHANG Xueyu;PENG Aiwu;ZHAO Lingzhi(State Key Laboratory of High Density Electromagnetic Power and Systems,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]高密度电磁动力与系统全国重点实验室,中国科学院电工研究所,北京100190 [2]中国科学院大学,北京100049

出　　处：《电工电能新技术》2025年第3期91-98,共8页Advanced Technology of Electrical Engineering and Energy

基　　金：中国科学院先导专项项目(XDC03050301)。

摘　　要：电磁力控制流体边界层是目前流体控制的研究热点,电磁激活板是进行电磁力流体边界层控制的主要方式。为精确计算分析电磁力流体边界层控制的输入能量和控制效率,通过采用基于COMSOL的电磁场仿真模拟方法,结合理论推导和数值计算,对海水中平面电磁激活板的电磁特性进行了系统研究。得到了电磁激活板及周围海水中电磁场的空间分布规律,提出了电磁激活板输入电流和电功率的精确计算方法,分析并获得了电磁激活板的主要结构参数——磁极间距和磁极厚度对平均磁通密度、电磁场穿透深度、电磁力、输入电流以及输入电功率的影响及变化规律,从而为电磁激活板的能量转换效率分析和性能优化提供了重要的理论依据。本文的研究结果可以扩展到水下航行器和超高音速飞行器的减阻、增升、电磁表面推进和矢量控制,将促进其性能提升和相关技术发展。Flow boundary control by electromagnetic force is currently a research hotspot and the electromagnetic actuator is the main method to do it.In order to accurately calculate and analyze input energy and control efficiency of electromagnetic flow boundary layer control,the electromagnetic characteristics of a planar electromagnetic actuator is systematically investigated by numerical simulations based on COMSOL.The spatial distribution of electromagnetic field is obtained,and an accurate calculation method for the input current and power of the electromagnetic actuator is proposed.The effect of the magnetic pole spacing and thickness on electromagnetic parameters of the electromagnetic actuator is analyzed and some results are obtained.The proposed calculation method and results obtained provide guideline and theoretical basis for the energy analysis and performance optimization of electromagnetic actuators.The research results of this paper can be applied to drag reduction,lift increase,electromagnetic surface propulsion and vector control of underwater navigators and hypersonic vehicles,and will promote the performance of underwater navigators and hypersonic vehicles along with the development of related technologies.

关 键 词：电磁流动控制 电磁力 边界层 电磁分析 

分 类 号：TM15[电气工程—电工理论与新技术]