| Инд. авторы: | Pinchukov V.I. |
| Заглавие: | Numerical simulation of unsteady flows with transient regimes |
| Библ. ссылка: | Pinchukov V.I. Numerical simulation of unsteady flows with transient regimes // Computational Mathematics and Mathematical Physics. - 2009. - Vol.49. - Iss. 10. - P.1765-1773. - ISSN 0965-5425. - EISSN 1555-6662. |
| Внешние системы: | DOI: 10.1134/S0965542509100108; РИНЦ: 15295192; SCOPUS: 2-s2.0-76349085160; WoS: 000270979900010; |
| Реферат: | eng: Self-oscillatory flows in aerodynamics and astrophysics are studied. The two-dimensional compressible gas equations are solved using the implicit Runge-Kutta scheme of the third order with respect to the inviscid terms and of the second order with respect to the viscous terms. An algebraic Cebeci-Smith turbulence model is used. Weakly unsteady and strongly unsteady flow regimes are observed. The former occur in a supersonic flow past a cylinder with a front projection and in the heliosphere. Such flows became stable when the turbulent diffusion is taken into account. The latter flows occur when a supersonic jet meets an obstacle and when such a jet penetrates a cavity. In these flows, the amplitude of oscillations slightly decreases when the turbulent diffusion is taken into account.
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| Издано: | 2009 |
| Физ. характеристика: | с.1765-1773 |
