Abstract
In this chapter we discuss compressible flow in one dimension. In the first section we develop the geometry of characteristics and in the second we introduce the notion of a weak solution and the entropy condition for shocks. In the third section we discuss the Riemann problem, that is, a flow problem with particular discontinuous initial data. A general construction, due to Glimm, which uses the solution of Riemann problems to produce solutions of arbitrary problems, is then presented. This construction is the basis of both some existence proofs and some methods of numerical computation in gas dynamics. In the final section we generalize the discussion to the flow of a gas that allows chemical energy release, such as occurs in combustion.
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© 1993 Springer Science+Business Media New York
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Chorin, A.J., Marsden, J.E. (1993). Gas Flow in One Dimension. In: A Mathematical Introduction to Fluid Mechanics. Texts in Applied Mathematics, vol 4. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-0883-9_3
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DOI: https://doi.org/10.1007/978-1-4612-0883-9_3
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4612-6934-2
Online ISBN: 978-1-4612-0883-9
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