Specific features of unsteady exhaustion of a gas–particle medium into vacuum
- Авторлар: Sadin D.1, Varvarskii V.1
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Мекемелер:
- Mozhaiskii Military Space Academy
- Шығарылым: Том 57, № 3 (2016)
- Беттер: 422-431
- Бөлім: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/159315
- DOI: https://doi.org/10.1134/S0021894416030056
- ID: 159315
Дәйексөз келтіру
Аннотация
Results of an analysis of two-dimensional unsteady exhaustion of a one-velocity gas–particle medium into vacuum for limiting equilibrium cases of heat transfer between the phases are reported. Domains of existence of a one-dimensional Riemann wave and a lateral expansion wave, as well as boundaries of the flow expansion region are determined. Under thermal equilibrium conditions, the reverse flow is found to occupy a large domain extending beyond the boundaries defined by angles of expansion for an ideal gas and for a gas–particle mixture with thermally insulated phases. Exhaustion of a nonequilibrium (in terms of velocities and temperatures) two-phase medium into vacuum is numerically simulated. It is demonstrated that a barrel-shaped structure with wave expansion of the gas and a combined discontinuity in the expanding gas–particle mixture is formed.
Авторлар туралы
D. Sadin
Mozhaiskii Military Space Academy
Хат алмасуға жауапты Автор.
Email: sadin@yandex.ru
Ресей, St. Petersburg, 197198
V. Varvarskii
Mozhaiskii Military Space Academy
Email: sadin@yandex.ru
Ресей, St. Petersburg, 197198