Open AccessModelling of nozzle start-up for underexpanded jet generation
Author(s) -
Maria Alexandrovna Kiryushina,
Т. Г. Елизарова
Publication year - 2021
Publication title -
preprint/preprinty ipm im. m.v. keldyša
Language(s) - English
Resource type - Journals
eISSN - 2071-2901
pISSN - 2071-2898
DOI - 10.20948/prepr-2021-59
Subject(s) - nozzle , jet (fluid) , mechanics , transient (computer programming) , flow (mathematics) , mechanical engineering , aerospace engineering , materials science , physics , computer science , engineering , operating system
A numerical simulation of hydrogen jet in the micronozzle is carried out, which is used as the main element in the experimental installation to study the properties of rarefied gases at high speeds and low temperatures. The features of the transient jet flow - pressure gradients, velocities and the complex geometry of the problem are uniformly described within the framework of the quasi-gas dynamic algorithm included in the open platform OpenFOAM.