ON THE EXPANSION OF A GAS INTO VACUUM,
MASSACHUSETTS INST OF TECH CAMBRIDGE
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A study is made of the flow into vacuum of a gas initially at rest in a state of uniform pressure and density the analysis is based on a continuum model. Among the topics discussed are the motion of the gasvacuum interface, the reflexion of a plane front off a rigid wall, the propagation of compressive waves within such expansions, the escape from a sphere and the collapse of a spherical cavity.