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Critical Flow Through Convergent‐Divergent Nozzles: Further Correspondence on a Highly Controversial Subject of Great Theoretical Importance

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 October 1951

Abstract

DEAR SIR, It is doubtful whether great practical importance can be attached to the precise location of the sonic section in a de Laval nozzle with friction present, under the assumptions of the one‐dimensional theory of flow. The truth of the matter, however, is that the equations of this approximation do lead to the conclusion that the condition of M 1, where M is the Mach number, prevails in the throat of a convergent‐divergent nozzle only in the limiting case of no friction, contrary to Mr Spalding's assertion in the August issue of AIRCRAFT ENGINEERING. It can occur in a section for which dA/dx 0 only if that section is at the exit of a convergent nozzle.

Citation

(1951), "Critical Flow Through Convergent‐Divergent Nozzles: Further Correspondence on a Highly Controversial Subject of Great Theoretical Importance", Aircraft Engineering and Aerospace Technology, Vol. 23 No. 10, pp. 305-307. https://doi.org/10.1108/eb032090

Publisher

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MCB UP Ltd

Copyright © 1951, MCB UP Limited