Open AccessIntensification of mixing of fuel with supersonic air flow when injection and electric discharge are combined
Author(s) -
Alexander A. Firsov,
A. V. Efimov,
N. S. Kolosov,
I. A. Moralev,
Sergey B. Leonov
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 - 10.1088/1742-6596/2100/1/012007
Subject(s) - supersonic speed , jet (fluid) , mixing (physics) , mechanics , electric discharge , flow (mathematics) , range (aeronautics) , materials science , voltage , choked flow , physics , electrode , quantum mechanics , composite material
This paper presents the results of experimental investigations of DC discharge influence on mixing intensification of transvers injected gas jet into supersonic aiflow. The air was used as injected gas to prevent the influence of chemical reactions on measurements. The data obtained during discharge includes current and voltage acquisition, registration of pressure pulsations in the jet downstream of discharge operation accompanied by correlation and Fourier analysis allowed to conclude that discharge significantly increase the pressure pulsations in a wide frequency range of 1000 Hz to 50kHz. Increase of the oscillations near the jet boundary is assumed to be related to kinematic mixing intensification of the injected gas with the oncoming flow.