Research on electromagnetic fields induced by ocean wave

被引：0
|
作者：
Zhang J. [1 ]
Jiang R. [1 ]
Jia Y. [2 ]
机构：
[1] Academy of Weaponry Engineering, Naval University of Engineering, Wuhan
[2] Scientific Research Department, Army Academy of Armored Force, Beijing
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2019年 / 47卷 / 09期
关键词：
Detection; Electromagnetic field; Induced electromagnetic fields; Mathematical model; Ocean; Ocean wave;
D O I：
10.13245/j.hust.190906
中图分类号：
学科分类号：
摘要：
In order to analysis the influence of environment electromagnetic fields to the ship electromagnetic detection, an air-sea-seabed three-layer mathematical model of induced electromagnetic fields associated with ocean wave was proposed by the solution of Maxwell＇s equations using electromagnetic field boundary conditions.Based on the above theoretic solutions, the electric field and magnetic field induced by wave were simulated.Furthermore, wave-induced electromagnetic fields were measured by floating platform and fixed platform in the sea.Both results show that the frequency of wave-induced electromagnetic field is concentrated below 0.5 Hz, and both amplitude and frequency are related to the speed of the waves.The faster the wave, the lower the frequency.The electric fields produced by waves under three sea conditions are on the order of a fewμV/m, and the magnetic fields are on the order of 0.5 nT. © 2019, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
引用
收藏
页码：31 / 35
页数：4
相关论文
共 12 条
  • [1] Goldstein R.M., Zebker H.A., Barnett T.P., Remote sensing of ocean currents, Science, 246, 4935, pp. 1282-1285, (1989)
  • [2] Tyler R.H., Sanford T.B., Oberhuber J.M., Geophysical challenges in using large-scale ocean-generated EM fields to determine the ocean flow, Journal of Geomagnetism and Geoelectricity, 49, 11-12, pp. 1351-1372, (1997)
  • [3] King R., Electromagnetic surface waves: new formulas and applications, IEEE Transactions on Antennas and Propagation, 33, 11, pp. 1204-1212, (1985)
  • [4] Chave A.D., On the electromagnetic fields induced by oceanic internal waves, Journal of Geophysical Re- Search: Oceans, 89, 6, pp. 10519-10528, (1984)
  • [5] Ochadlick A.R., Measurements of the magnetic fluctuations associated with ocean swell compared with Weaver's theory, Journal of Geophysical Research: Oceans, 94, 11, pp. 16237-16242, (1989)
  • [6] Tyler R.H., A simple formula for estimating the magnetic fields generated by tsunami flow, Geophysical Research Letters, 32, 9, pp. 1-4, (2005)
  • [7] Zhang Z.L., Wei W.B., Liu B.H., Et al., Theoretical calculation of electromagnetic field generated by ocean waves, Acta Oceanologica Sinica, 30, 1, pp. 42-46, (2008)
  • [8] Madurasinghe D., Induced electromagnetic fields associated with large ship wakes, Wave Motion, 20, pp. 283-292, (1994)
  • [9] Madurasinghe D., Tuck E.O., The induced electromagnetic field associated with submerged moving bodies in an unstratified conducting fluid, IEEE Journal on Oceanic Engineering, 19, 2, pp. 193-199, (1994)
  • [10] Yaakobi O., Zilman G., Miloh T., Detection of the electromagnetic field induced by the wake of a ship moving in a moderate sea state of finite depth, Journal of Engineering Mathematics, 70, 3, pp. 17-27, (2011)
12