Shock Waves
Summary
- Animations
 |
 |
| speed regime |
relative speed |
mach number |
mach angle |
important concept |
|---|---|---|---|---|
| stationary | 0 | 0 | wavefronts | |
| subsonic | <c | <1 | doppler effect | |
| transonic | ~c | ~1 | ~90° | sound barrier |
| supersonic | >c | >1 | <90° | shock wave |
| hypersonic | ≳5c | ≳5 | ≲10° | ? |