Investigation of the Structure and Characteristics of a Nonstationary Supersonic Gas Jet Produced By a Pulse Generator

The initiation of a shock wave in the gas space of a pulse generator, the exit of this wave from the generator nozzle, and the formation of a nonstationary gas-jet flow downstream of the nozzle exit section were experimentally investigated and numerically simulated as applied to the installations fo...

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Bibliographic Details
Published in:Journal of engineering physics and thermophysics 2021-09, Vol.94 (5), p.1255-1265
Main Authors: Volkov, K. N., Emel’yanov, V. N., Efremov, A. V., Tsvetkov, A. I., Chernyshov, P. S.
Format: Article
Language:English
Subjects:
Classical Mechanics
Complex Systems
Engineering
Engineering Thermodynamics
Fluid flow
Gas jets
Heat and Mass Transfer
Heat transfer
Industrial Chemistry/Chemical Engineering
Investigations
Jet flow
Jet planes
Nozzles
Pulse cleaning
Pulse generators
Shock waves
Thermodynamics
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Summary:The initiation of a shock wave in the gas space of a pulse generator, the exit of this wave from the generator nozzle, and the formation of a nonstationary gas-jet flow downstream of the nozzle exit section were experimentally investigated and numerically simulated as applied to the installations for the gas-pulse cleaning of heat transfer surfaces. An experimental investigation of the structure of a nonstationary underexpanded supersonic gas jet discharging from the generator nozzle into an immersed space and propagating along a side screen modeling a heat transfer surface cleaned was performed on an air stand. The shock-wave and vortex structures of such a jet were numerically investigated in detail by the method used for the simulation of large vortices.
ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-021-02406-6