Formation of a pulsed jet behind a supersonic nozzle when the gas can relax at the entrance to the nozzle View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1980-11

AUTHORS

V. A. Belavin, V. V. Golub, I. M. Naboko

ABSTRACT

The formation of a pulsed jet behind supersonic nozzles is considered when relaxation processes take place in the gas entering the nozzle. In a general formulation, the problem of the motion of the front of the exhausting matter and the disturbances accompanying it in the process of formation of a pulsed jet is determined by a large number of parameters, which characterize the exhausting gas and the residual gas of the pressure chamber and also the geometry of the flow conditions. A reliable computational model of a pulsed jet does not exist. To construct such a model, experiments are required in a wide range of boundary and initial conditions. An investigation was made into flow of shockheated argon, nitrogen, and carbon dioxide out of nozzles set up at the end of a shock tube. Generalized dependences were obtained for describing the motion of the front of the nonstationary jet and the wave in front of it in a wide range of the initial pressure-difference parameters and variation of the stagnation temperatures. The choice of the generalized parameters when relaxation of the excited internal degrees of freedom of the molecules of the gas can occur at the entrance to the nozzle is discussed. More... »

PAGES

896-901

Journal

TITLE

Fluid Dynamics

ISSUE

6

VOLUME

15

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01096642

DOI

http://dx.doi.org/10.1007/bf01096642

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1000583367


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