| Инд. авторы: | Baev M.K., Chernykh G.G. |
| Заглавие: | Numerical model of a turbulent flow behind a heated grid in a wind tunnel |
| Библ. ссылка: | Baev M.K., Chernykh G.G. Numerical model of a turbulent flow behind a heated grid in a wind tunnel // Mathematical Models and Computer Simulations. - 2012. - Vol.4. - Iss. 3. - P.321-335. - ISSN 2070-0482. - EISSN 2070-0490. |
| Внешние системы: | DOI: 10.1134/S2070048212030027; РИНЦ: 23961597; SCOPUS: 2-s2.0-84919783496; |
| Реферат: | eng: A closure of the Corrsin equation is performed using the gradient hypothesis connecting a third-order mixed correlation moment with a second-order two-point correlation function of a passive scalar field. A numerical model of the locally isotropic turbulence is constructed based on the closed system of the Kolmogorov and Yaglom equations. On the assumption of constant Loitsiansky and Corrsin invariants, a self-similar solution of the Corrsin equation is constructed corresponding to infinitely large Reynolds and Peclet numbers. A numerical model of the turbulence dynamics and temperature fluctuations behind a heated grid in a wind tunnel is constructed based on the closed Karman-Howarth and Corrsin equations. © 2012, Pleiades Publishing, Ltd.
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| Ключевые слова: | Kolmogorov and Yaglom equations; locally isotropic and isotropic turbulence; numerical modeling; Karman-Howarth and Corrsin equations; |
| Издано: | 2012 |
| Физ. характеристика: | с.321-335 |