519.63 Mathematical Modeling of the Propagation of a Pulsating Detonation Wave in a Hydrogen-Air Mixture Using Detailed Kinetics of Chemical Reactions

Lopato A. I. (Institute for Computer Aided Design of the Russian Academy of Sciences)

MATHEMATICAL MODELING, DIRECT DETONATION INITIATION, PETERSEN-HANSON KINETICS, HIGH-FREQUENCY PULSATING MODE


doi: 10.18698/2309-3684-2024-3-6580


The work is dedicated to the numerical study of pulsating gaseous detonation wave propagation. The mathematical model is based on the Euler equations written for the multicomponent gas and supplemented by the detailed chemical reactions model of Petersen and Hanson. to describe the combustion of the hydrogen–air mixture. This kinetics model is effective and efficient in describing processes in hydrogen-air and hydrogen-oxygen mixtures. The numerical algorithm is based on the finite volume approach, essentially non-oscillatory scheme, AUSM numerical flux and the Runge–Kutta method for time integration. Direct initiation of detonation at the closed end of a channel filled with a stoichiometric hydrogen-air mixture is considered. Mathematical modeling of the propagation of a pulsating detonation wave was carried out. The peculiarities of high-frequency and high-amplitude pulsations modes are discussed.


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Лопато А.И. Математическое моделирование распространения пульсирующей волны газовой детонации в водородно-воздушной смеси с использованием детальной кинетики химических реакций. Математическое моделирование и численные методы, 2024, № 3, с. 65–80.


Работа выполнена в рамках госзадания ИАП РАН.


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