shock wave
Shock waves are a form of transmission of turbulence. As with other common forms of fluctuation, shock waves can also transfer energy through the medium. In some special cases where no physical medium is present, shock waves can transmit energy through fields, such as electromagnetic fields. The main characteristic of the shock wave is that the dielectric properties (such as pressure, temperature, or velocity) occur suddenly before and after the shock wave. Corresponding to the negative step is the expansion of the wave. Acoustic shock is generally higher than the usual velocity (in the air, ie, the speed of sound). Unlike solitary waves (another form of nonlinear waves), the shock wave dissipates rapidly as the distance increases. Moreover, the expansion wave is always accompanied by shock waves, and eventually combined with the shock wave. This part counteracts the shock. An acoustic phenomenon that occurs when a supersonic airplane passes, that is, by the dissipation and annihilation of the shock - expansion wave pair. ...