Open AccessMathematical modeling of spatial gas flow in nozzles of nontrivial geometry
Author(s) -
S A Bitkin,
Михаил Александрович Корепанов,
M.R. Koroleva,
A.I. Karpov,
Sergey Makarov
Publication year - 2021
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 - 10.1088/1742-6596/2094/4/042002
Subject(s) - nozzle , inviscid flow , flow (mathematics) , mechanics , geometry , plane (geometry) , euler equations , oblique case , cross section (physics) , section (typography) , euler's formula , physics , mathematics , mathematical analysis , computer science , thermodynamics , linguistics , philosophy , quantum mechanics , operating system
Numerical modeling of the spatial gas flow in an adjustable nozzle with an asymmetric critical section caused by the overlap of a part of the flow area by a gas flow regulator has been carried out. The mathematical model is based on three-dimensional models of gas dynamics, the method of large particles is used for calculation. When describing the unsteady flow of an inviscid gas, the system of Euler equations is used, written for a computational rectangular plane, taking into account the function of nozzle geometry. The results of calculations of flow parameters along a nozzle path with a uniform outlet section and with an obliquely cut outlet nozzle are presented. Calculations were carried out for completely open critical sections and for half overlapped. For oblique cut nozzles, the overlap of the critical section from the side of the short part and from the side of the long part of the oblique nozzle is considered.