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Unsteady Isentropic Flow with Variable Specific Heats

Published online by Cambridge University Press:  28 July 2016

R. S. Benson*
Affiliation:
Mechanical Engineering, University of Liverpool

Extract

It is usual when plotting characteristic diagrams for unsteady flow fields to assume a constant ratio of specific heats. In the general theory of characteristics developed by Guderley the variable specific heats are introduced into the calculation of the characteristic constants. In the following method the variation in the ratio of the specific heats is included directly into the slope of the state characteristics. The position diagram may then be plotted directly by the usual techniques.

Type
Technical Notes
Copyright
Copyright © Royal Aeronautical Society 1956

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References

1. Guderley, G. (1948). Non-Stationary Gas Flow in Thin Pipes of Variable Cross Section. N.A.C.A. Technical Memo. 1196, 1948.Google Scholar
2. Haller, P. (1945). The Application of a Graphic Method to Some Dynamic Problems in Gases. Sulzer Technical Review No. 1, p. 6, 1945.Google Scholar