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The Speed of Sound and Mach Number Effects

Published online by Cambridge University Press:  04 July 2016

Extract

In a recent paper the suggestion is made that “it would be sensible when discussing the flow to use a Mach number based on the actual propagation velocity in the given circumstances.”

This directs attention to the deeper question of whether or not a Mach number however defined is a rational parameter in terms of which to express effects of flow.

In certain cases the quantity γp/ρ occurs quite naturally, regardless of any physical interpretation that can be given to it.

Type
Technical Notes
Copyright
Copyright © Royal Aeronautical Society 1964

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References

1.Bragg, S. L. and Smith, S. F. The Speed of Sound and Mach Number Effects. Journal of the Royal Aeronautical Society, October 1963.CrossRefGoogle Scholar
2.Naylor, V. D. Critical Flow of a Gas Through a Convergent Nozzle. Aircraft Engineering, June 1951.Google Scholar
3.Naylor, V. D.Flow of a Compressible Gas With Friction. Aircraft Engineering, Vol. XXIII, No. 272, October 1951.Google Scholar
4.Naylor, V. D.An Experiment on Nozzle Flow. Aircraft Engineering, Vol. XXIV, No. 285, November 1952.Google Scholar