How does a supersonic aircraft create a shock wave?
An aircraft moving faster than sound produces a pattern of pressure disturbances very different from a quiet sound wave. Across a shock front, air pressure, density, and temperature change sharply. Explore how the airflow around an aircraft creates that abrupt boundary.
Questions you could explore
- Which assumptions about the air change when a shock front forms?
- How does a shock wave's abrupt pressure change differ from the smooth change in a weak sound wave?
Start reading
- NASA Glenn Research CenterNormal Shock Wave Equations
Explains the abrupt pressure, density, and temperature changes across a shock, and why ordinary flow assumptions fail there.
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