Open AccessThe influence of nozzle geometry on the gas-dynamic structure of the supersonic nonisobaric jet
Author(s) -
S. G. Kundasev,
V. I. Zapryagaev,
N. A. Kiselev,
S. P. Rybak
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1404/1/012115
Subject(s) - nozzle , schlieren , choked flow , mechanics , mach number , supersonic speed , jet (fluid) , shock wave , bevel , flow (mathematics) , shock (circulatory) , rotational symmetry , discharge coefficient , oblique shock , materials science , physics , structural engineering , engineering , thermodynamics , medicine
The paper presents the investigation results of the flow structure of cold supersonic jets flowing out of model nozzles with a Mach number on the exit M a = 3.5: an axisymmetric nozzle, a nozzle with a rectangular critical section, a beveled nozzle with a rectangular critical section. Flow schlieren images and transverse measured total pressure profiles in the flow are presented. The influence of the critical section shape and the beveled exit section on the shock-wave structure of the flow is described.