Verification of kinetic schemes of hydrogen ignition and combustion in air

A. V. Fedorov, N. N. Fedorova, O. S. Vankova, D. A. Tropin

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

2 Цитирования (Scopus)

Аннотация

Three chemical kinetic models for hydrogen combustion in oxygen and three gas-dynamic models for reactive mixture flow behind the initiating SW front were analyzed. The calculated results were compared with experimental data on the dependences of the ignition delay on the temperature and the dilution of the mixture with argon or nitrogen. Based on detailed kinetic mechanisms of nonequilibrium chemical transformations, a mathematical technique for describing the ignition and combustion of hydrogen in air was developed using the ANSYS Fluent code. The problem of ignition of a hydrogen jet fed coaxially into supersonic flow was solved numerically. The calculations were carried out using the Favre-averaged Navier-Stokes equations for a multi-species gas taking into account chemical reactions combined with the k-ω SST turbulence model. The problem was solved in several steps. In the first step, verification of the calculated and experimental data for the three kinetic schemes was performed without considering the conicity of the flow. In the second step, parametric calculations were performed to determine the influence of the conicity of the flow on the mixing and ignition of hydrogen in air using a kinetic scheme consisting of 38 reactions. Three conical supersonic nozzles for a Mach number M = 2 with different expansion angles β = 4°, 4.5°, and 5° were considered.

Язык оригиналаанглийский
Название основной публикацииXV All-Russian Seminar "Dynamics of Multiphase Media", DMM 2017
Редакторы Fomin
ИздательAmerican Institute of Physics Inc.
Число страниц8
Том1939
ISBN (электронное издание)9780735416246
DOI
СостояниеОпубликовано - 28 мар 2018
Событие15th All-Russian Seminar on Dynamics of Multiphase Media, DMM 2017 - Novosibirsk, Российская Федерация
Продолжительность: 3 окт 20175 окт 2017

Серия публикаций

НазваниеAIP Conference Proceedings
ИздательAMER INST PHYSICS
Том1939
ISSN (печатное издание)0094-243X

Конференция

Конференция15th All-Russian Seminar on Dynamics of Multiphase Media, DMM 2017
СтранаРоссийская Федерация
ГородNovosibirsk
Период03.10.201705.10.2017

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