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Shocks and Rarefactions

  • R. Paul Drake
Part of the Shock Wave and High Pressure Phenomena book series (SHOCKWAVE)

Abstract

The word “shock” is used very widely in common experience. One is shocked by an unexpected event; a wounded victim goes into shock; and one shocks a material by suddenly cooling it. A “shock wave” is a sudden transition in the properties of a fluid medium, involving a difference in flow velocity across a narrow (ideally, abrupt) transition. In high-energy-density physics, nearly any experiment involves at least one shock wave. Such shock waves may be produced by applying pressure to a surface or by creating a collision between two materials. In astrophysics, nearly every sudden event produces a shock wave. Yet in common experience one encounters very few shock waves. We hear thunder after lightning, which is a long-term consequence of the shock wave produced by the lightning channel, but as we shall see below one would hope never to directly experience this shock wave. Most of us hear sonic booms infrequently, but they are the only shock wave of human origin we typically encounter.

Keywords

Shock Wave Sound Speed Density Ratio Blast Wave Rarefaction Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2006

Authors and Affiliations

  • R. Paul Drake
    • 1
  1. 1.Atmospheric, Oceanic, and Space SciencesUniversity of MichiganAnn ArborUSA

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