stationary discontinuity
 

What is stationary discontinuity how is it different from contacts and shocks

Re: stationary discontinuity
 

A stationary shock is one example of a stationary discontinuity. Since shocks and contact surfaces can be moving through a fluid, the 'stationary' descriptor is prepended to denote the type of discontinuity being referenced. This also applies to other types of discontinuities.

Re: stationary discontinuity
 

Since the classical laws of physics must be Galilean invariant, we can use any uniformly moving reference frame to describe the physical phenomenon. How does one define a stationary discontinuity in that case ?

Re: stationary discontinuity
 

Stationary is a name then.

What about if this discontinuity is a contact wave i.e. one eigenvalue for a system of conservation laws is it still a stationary discontinuity then?

Re: stationary discontinuity
 

Generally no. The eigenvalue typically corresponds to the speed of the discontinuity.