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轨道炮文献里的矛盾说法

三水合番2024-11-23 IP:四川

看了些轨道炮仿真相关的文献。

有些文献，比如 [1] 里说，高速滑动电接触的3D仿真得用专用软件仿。如果用通用软件，比如comsol，就必须用些奇技淫巧，比如用“导电的空气”来代替弹丸（下面的Fig. 20），如果直接用常规的动网格仿真会有很大的误差。

但是另一些文献，比如[2]，[3]里，直接用了comsol，ls-dyna之类的通用软件仿，也没用奇技淫巧，也一样仿出来了。而且看结果（下面的 Fig. 11 和 14）也大差不差，不像是有什么大得不得了的误差。搜资料的时候还发现，甚至bilibili上也有人发用comsol仿轨道炮的教程（XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX？）

不知道究竟是怎么个情况[1f615]

[1] N. Tosun and O. Keysan, “A Comparison of Velocity Skin Effect Modeling With 2-D Transient and 3-D Quasi-Transient Finite Element Methods,” IEEE TRANSACTIONS ON PLASMA SCIENCE, vol. 49, no. 4, 2021.

[2] C. Li et al., “Influence of Armature Movement Velocity on the Magnetic Field Distribution and Current Density Distribution in Railgun,” IEEE Trans. Plasma Sci., vol. 48, no. 6, pp. 2308–2315, Jun. 2020, doi: 10.1109/TPS.2020.2990926.

[3] S. R. N. Praneeth and B. Singh, “Finite Element-Boundary Element Method Based Simulations of Electromagnetic Railgun in Augmented Configurations,” IEEE J. Multiscale Multiphys. Comput. Tech., vol. 7, pp. 320–327, 2022, doi: 10.1109/JMMCT.2022.3222529.

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