Geomagnetic Perturbations Caused by a Sphere Moving in the Conducting Liquid
| Autor: | Valery Sorokin, Vadim Surkov, A. K. Yashchenko |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Nuclear and High Energy Physics Astronomy and Astrophysics Statistical and Nonlinear Physics Mechanics 01 natural sciences 010305 fluids & plasmas Electronic Optical and Magnetic Materials Magnetic field Physics::Fluid Dynamics Classical mechanics Earth's magnetic field Amplitude Orientation (geometry) Electric field 0103 physical sciences Compressibility Streamlines streaklines and pathlines Potential flow Electrical and Electronic Engineering 010306 general physics |
| Zdroj: | Radiophysics and Quantum Electronics. 60:552-560 |
| ISSN: | 1573-9120 0033-8443 |
| DOI: | 10.1007/s11141-017-9826-7 |
| Popis: | We study the external magnetic-field perturbations caused by flows of a conducting incompressible liquid which streamlines a dielectric sphere moving in it. An analytical solution of the problem is obtained for the case of a potential flow of liquid and an arbitrary orientation of the external magnetic field. Angular distribution of the magnetic and electric field perturbations, as well as the dependence of their amplitudes on distance, are examined. The directions in which the magnetic and electric components of the perturbations are the maximum are determined. Temporal dependences and the spectra of electromagnetic signals are analyzed for different parameters of the problem. The results of analytical research are illustrated by numerical calculations. |
| Databáze: | OpenAIRE |
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