Deceleration of a supersonic flow down to transonic speeds using gas-dynamic pulses during combustion of hydrocarbon fuels

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Abstract

Creation of a transonic region by means of gas fuel burning in a supersonic flow with a Mach number M = 2 in a channel with a variable cross section is studied numerically. The averaged Navier - Stokes equations closed by the k-? model of turbulence are solved. The transonic region is created by using gas-dynamic pulses of a throttling jet, which initiates gaseous fuel combustion in the channel region with a constant cross section. The fuel (ethylene or kerosene) is supplied axially into the axisymmetric channel. It is shown that initiation of kerosene combustion requires using gas-dynamic pulses of higher power than those in the ethylene case. The evolution of the kerosene combustion process in channels of different lengths is studied. It is shown that the pulse action duration required for initiation increases with the length of the channel region with a constant cross section.

Original languageEnglish
Title of host publicationInternational Conference on the Methods of Aerophysical Research, ICMAR 2020
EditorsVasily M. Fomin, Alexander Shiplyuk
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440999
DOIs
Publication statusPublished - 24 May 2021
Event20th International Conference on the Methods of Aerophysical Research, ICMAR 2020 - Akademgorodok, Novosibirsk, Russian Federation
Duration: 1 Nov 20207 Nov 2020

Publication series

NameAIP Conference Proceedings
Volume2351
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference20th International Conference on the Methods of Aerophysical Research, ICMAR 2020
CountryRussian Federation
CityAkademgorodok, Novosibirsk
Period01.11.202007.11.2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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