Numerical simulation of detonation wave propagation in the nonuniform medium in the shock-attached frame

Авторы: Poroshyna Y.E., Lopato A.I., Utkin P.S.
Сборник: Detonation: Latest accomplishments, edited by S.M. Frolov
Год издания: 2021
Место издания: Torus Press Moscow
Первая страница: 43
Последняя страница: 49
Аннотация: Three dfferent numerical algorithms are proposed for the simulation of one-dimensional pulsating detonation wave propagation in the periodic nonuniform medium using the shock-attached frame of reference. These algorithms ("explicit", "semi-implicit", and "implicit") differ in the way of leading shock speed calculation. The algorithms are analyzed in the problem of shock wave interaction with the sine waves in density. We show that the semi-implicit and implicit algorithms for the leading shock speed calculation provide the most robust simulation but nevertheless fail at a certain time at the beginning of the process because of the internal shocklets interaction with the leading shock.
Добавил в систему: Уткин Павел Сергеевич

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