A theory, based on the same assumptions which are applied to incompressible flow, has been developed for the flow of a compressible fluid through sudden enlargements. Experimental measurements, with air as the working fluid, agree well with theoretical predictions for the relation between throat Mach number and the Mach number downstream of the sudden enlargement for the range of enlargement ratios 0.0292–0.255 and for throat Mach numbers up to 1.00.
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References
1.
BaileyN. P.1944Jl. Aeronautical Sciences, vol. 11, p. 227, ‘Thermodynamics of Air at High Velocities’.
2.
ColeB. N.MillsB.1952–53Proc. I.Mech.E., vol. 1B, p. 364, ‘Theory of Sudden Enlargements Applied to the Poppet Exhaust-valve, with Special Reference to Exhaust-pulse Scavenging’.
3.
ShapiroA. H.HawthorneW. R.1947Trans. A.S.M.E., vol. 14, p. A317, ‘Mechanics and Thermodynamics of Steady One-dimensional Gas Flow’.
