Transcription of Shock Waves versus Sound Waves
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Shock Waves versus Sound Waves
Shock Waves versus Sound WavesSIDEBAR 1 Explosions, projectiles whizzing by atsupersonic speeds, high-speed colli-sions of solids what do these phe-nomena have in common?They all create very large changes in localpressure over very short times, and theseviolent pressure changes self-steepen intoshock fronts, or Shock Waves . Unlike a soundwave, which is a small-amplitude com-pression wave that propagates at the localsound speed and leaves the state of the me-dium unchanged, a Shock front is a nonlinearwave that abruptly changes the state of thesupersonically approaching gas. The gas isgenerally at a higher temperature and pres-sure after it has passed through the Shock ( , after the Shock has passedthrough the gas).
Shock Waves versus Sound Waves SIDEBAR 1 Explosions, projectiles whizzing by at supersonic speeds, high-speed colli-sions of solids—what do these phe-nomena have in common? They all create very large changes in local
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