09-28-2021-1804 - Shocks and discontinuities are transition layers where the plasma properties change from one equilibrium state to another. Shocks_and_discontinuities_(magnetohydrodynamics)

Shocks and discontinuities are transition layers where the plasma properties change from one equilibrium state to another. The relation between the plasma properties on both sides of a shock or a discontinuity can be obtained from the conservative form of the magnetohydrodynamic (MHD) equations, assuming conservation of mass, momentum, energy and of .

https://en.wikipedia.org/wiki/Shocks_and_discontinuities_(magnetohydrodynamics)

https://en.wikipedia.org/wiki/Magnetic_pressure

https://en.wikipedia.org/wiki/Tangential_and_normal_components