Direct Numerical Simulation of Turbulent Combustion of Hydrogen-Air Mixtures of Various Compositions in a Two-Dimensional Approximation

被引：8

作者：

Basevich, V. Ya. ^{[1
]}

Belyaev, A. A. ^{[1
]}

Frolov, S. M. ^{[1
,2
,3
]}

Frolov, F. S. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia

[2] MIFI Natl Res Nucl Univ, Moscow 115409, Russia

[3] Russian Acad Sci, Fed Sci Ctr, Syst Res Inst, Moscow 117218, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2019年 / 13卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

direct numerical simulation; turbulent combustion; detailed kinetic mechanism; hydrogen;

D O I：

10.1134/S1990793119010044

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A technique of two-dimensional direct numerical simulation of turbulent flame propagation in reacting gas mixtures under stationary homogeneous isotropic turbulence conditions is proposed. This technique is based on a detailed kinetic mechanism of combustion of a multicomponent mixture and uses no fitting parameters. It is applied to the calculation of turbulent combustion of a hydrogen-air mixture. A condition is proposed to compare the results of two-dimensional calculations (dependences of flame propagation velocity on turbulence intensity) with the data of actual three-dimensional experiments. The obtained agreement between the calculated and measured dependences confirmed the validity of the proposed condition. The effects of pressure on the flame propagation velocity were considered. The calculated concentrations of the active reaction centers-hydroxyl (OH) and H and O atoms-in turbulent flame are lower than those in laminar flame, which also agrees with experimental results.

引用

页码：75 / 85

页数：11

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