To the Editor. DEAR SIR, In the June issue of AIRCRAFT ENGINEERING, Mr V. D. Naylor rightly asserts that, according to one-dimensional theory, the velocity at the throat of a Laval nozzle is the local sonic velocity, whether friction is present or not. However his proof rests on an expansion law pvn=constant, when n≠y, and the throat velocity which he obtains differs according to the value of n. Both the assumption and the conclusion are false. The confusion which has existed on this point is, therefore, deepened.
Critical Flow Through Convergent Nozzles
Aircraft Engineering and Aerospace Technology ; 23 , 8 ; 238-245
01.08.1951
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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