4. Reversible flow of a perfect gas in a cylindrical pipe
This flow, known as Rayleigh flow, which takes place at Ω = Cte while respecting reversibility, can only develop with a controlled q heat exchange. This necessity makes it infrequent in practice.
4.1 Rayleigh flow equations
The general equations applied to this particular case are as follows:
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continuity (2) :
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Reversible flow of a perfect gas in a cylindrical pipe
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