Entropy jump across an inviscid shock wave | Zendy

Manuel D. Salas | Zendy; Angelo Iollo | Zendy

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Entropy jump across an inviscid shock wave

Author(s) -

Manuel D. Salas,

Angelo Iollo

Publication year - 1996

Publication title -

theoretical and computational fluid dynamics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.817

H-Index - 59

eISSN - 1432-2250

pISSN - 0935-4964

DOI - 10.1007/bf00456376

Subject(s) - inviscid flow , jump , euler equations , shock wave , entropy (arrow of time) , mathematics , moving shock , conservation law , shock (circulatory) , mechanics , mathematical analysis , euler's formula , physics , classical mechanics , thermodynamics , medicine , quantum mechanics

The shock jump conditions for the Euler equations in their primitive form are derived by using generalized functions. The shock profiles for specific volume, speed, and pressure are shown to be the same, however density has a different shock profile. Careful study of the equations that govern the entropy shows that the inviscid entropy profile has a local maximum within the shock layer. We demonstrate that because of this phenomenon, the entropy propagation equation cannot be used as a conservation law.

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