MHD sensor | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-04

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Magnetohydrodynamics


00:00:57 1 History
00:01:53 2 Ideal and resistive MHD
00:03:09 2.1 Ideal MHD equations
00:08:00 2.2 Applicability of ideal MHD to plasmas
00:08:48 2.3 Importance of resistivity
00:10:47 2.4 Importance of kinetic effects
00:11:56 3 Structures in MHD systems
00:12:39 4 Waves
00:14:17 5 Extensions
00:16:53 6 Applications
00:17:02 6.1 Geophysics
00:18:03 6.1.1 Earthquakes
00:18:47 6.2 Astrophysics
00:20:32 6.3 Sensors
00:20:55 6.4 Engineering
00:22:49 6.5 Magnetic drug targeting
00:23:26 7 See also



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SUMMARY
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Magnetohydrodynamics (MHD; also magneto-fluid dynamics or hydro­magnetics) is the study of the magnetic properties and behaviour of electrically conducting fluids. Examples of such magneto­fluids include plasmas, liquid metals, salt water, and electrolytes. The word "magneto­hydro­dynamics" is derived from magneto- meaning magnetic field, hydro- meaning water, and dynamics meaning movement. The field of MHD was initiated by Hannes Alfvén, for which he received the Nobel Prize in Physics in 1970.
The fundamental concept behind MHD is that magnetic fields can induce currents in a moving conductive fluid, which in turn polarizes the fluid and reciprocally changes the magnetic field itself. The set of equations that describe MHD are a combination of the Navier–Stokes equations of fluid dynamics and Maxwell’s equations of electro­magnetism. These differential equations must be solved simultaneously, either analytically or numerically.