Analysis of Ion Separation Magnetic Field Induced by Submarine Hydrodynamic Perturbations

Ion separation magnetic field is produced under hydrodynamic perturbation in the electrolyte solution. The ion separation includes lateral separation and vertical separation, and most predecessors' researches merely cover the latter. This paper introduces a comprehensive theoretical model combining both types of separation, and a general research method on basis of multi-physics simulation. Sea is a complex electrolyte solution with NaC1 as its main component. Vessel’s wake flow provides hydrodynamic perturbations. This paper builds a moving SUBOFF submarine model to analyze the ion separation magnetic field in its wake flow. In our calculation, the submarine is moving at 3m/s, and its propeller rotating at 7rpm. The calculation indicates that magnetic field behind the submarine at the distance of one time the submarine’s length is in the level of ten pico-Tesla, and the attenuation of magnetic field corresponds to the power of 1.4 of the distance.