Transonic flow of a gas in axisymmetric Laval nozzles with steep walls

Autor: Yu. B. Lifshits, V. I. Kireev
Rok vydání: 1973
Předmět:
Zdroj: Fluid Dynamics. 5:947-950
ISSN: 1573-8507
0015-4628
DOI: 10.1007/bf01015094
Popis: A large number of articles have recently appeared [1–5] in which various numerical methods have been proposed for solution of both the direct and inverse problem of calculating the flow of an ideal gas in a Laval nozzle. An analysis of the results presented in these articles shows that, in spite of the two-dimensional character of the flow fields obtained, the distribution of the pressure at the wall and along the central line of the flow differs only slightly from the values calculated using the hydraulic theory, in which, as is well known, the transverse distribution of the parameters is neglected. In what follows, an analysis is presented of the numerical results of a calculation of the gas flow in the transitional region of round Laval nozzles with very steep walls, where the flow parameters vary considerably in a transverse direction and where their values differ strongly from those obtained in a hydraulic approximation.
Databáze: OpenAIRE