The study of turbulence in MHD flow generated by rotating and traveling magnetic fields

被引：0
作者：
Ilya Kolesnichenko
Alexander Pavlinov
Ephim Golbraikh
Peter Frick
Arkadii Kapusta
Boris Mikhailovich
机构：
[1] Institute of Continuous Media Mechanics,Physics Department
[2] Perm National Research Polytechnic University,MHD Center
[3] Ben-Gurion University of the Negev,Department of Mechanical Engineering
[4] Ben-Gurion University of the Negev,undefined
[5] Ben-Gurion University of the Negev,undefined
来源：
Experiments in Fluids | 2015年 / 56卷
关键词：
Carrier Frequency; Azimuthal Velocity; Rotate Magnetic Field; Liquid Metal Flow; Travel Magnetic Field;
D O I：
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学科分类号：
摘要：
We consider a problem of spectral analysis of signals from electromagnetic sensors operating in a turbulent MHD flow generated by rotating and traveling magnetic fields, which create a strong electromagnetic noise. Using a wavelet-based technique for cross-correlation signal analysis and filtration, we show that at frequencies lower than the frequency of the applied magnetic field, the spectral properties of the velocity field can be clearly seen in spite of the fact that the measured fields are much weaker than the driving rotating (or traveling) magnetic field. On the basis of the proposed method, spectra of turbulent velocity fields, measured in the experiment, were studied.
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