Editing Magnetohydrodynamics (section)

{{Short description|Model of electrically conducting fluids}}
{{For|the academic journal|Magnetohydrodynamics (journal)}}

[[File:The sun is an MHD system that is not well understood- 2013-04-9 14-29.jpg|thumbnail|The plasma making up the Sun can be modeled as an MHD system]]

[[File:Orszag-tang-vortex.png|thumb|Simulation of the Orszag–Tang MHD vortex problem, a well-known model problem for testing the transition to supersonic 2D MHD turbulence<ref>{{cite web |author1=Philip Hopkins |title=O-T Vortex Test |url=https://www.astro.princeton.edu/~jstone/Athena/tests/orszag-tang/pagesource.html |website=www.astro.princeton.edu |publisher=Princeton University Department of Astrophysical Sciences |date=July 2004}}</ref>]]

{{Electromagnetism}}

In [[physics]] and [[engineering]], '''magnetohydrodynamics''' ('''MHD'''; also called '''magneto-fluid dynamics''' or '''hydro&shy;magnetics''') is a model of [[electrically conducting]] [[fluid]]s that treats all interpenetrating [[particle species]] together as a single [[Continuum mechanics|continuous medium]]. It is primarily concerned with the low-frequency, large-scale, magnetic behavior in [[Plasma (physics)|plasmas]] and [[liquid metal]]s and has applications in multiple fields including [[space physics]], [[geophysics]], [[astrophysics]], and [[engineering]].

The word ''magneto&shy;hydro&shy;dynamics'' is derived from ''{{wikt-lang|en|magneto-}}'' meaning [[magnetic field]], ''{{wikt-lang|en|hydro-}}'' meaning water, and ''{{wikt-lang|en|dynamics}}'' meaning movement. The field of MHD was initiated by [[Hannes Alfvén]], for which he received the [[Nobel Prize in Physics]] in 1970.