Samara University Repository
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This is an open electronic archive created to preserve and disseminate the scientific results of our university. The works of researchers, faculty members, and students are available to everyone for academic and research purposes.
The repository contains dissertations, research articles, educational and methodological materials, monographs, and regulatory documents. The collections cover a wide range of fields: from aerospace technologies, engine engineering, and computer science to history, linguistics, mathematics, and ecology. The archive brings together the scientific heritage of the university, including materials prepared during the period of Samara State Aerospace University and Samara State University.
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| Title: | Convective instability and nonlinear transition in rotating-disk boundary layers of an infinite rotor-stator cavity |
| Authors: | Du Q. Xie Y. |
| Keywords: | aerodynamic optimization aircraft engines boundary layer computational methods convective instability flow state rotating disk rotor-stator cavity steady state авиационные двигатели аэродинамическая оптимизация вращающийся диск вычислительные методы конвектиная неустойчивость пограничный слой роторно-статорная полость состояние потока стационарный режим |
| Issue Date: | 2026 |
| Citation: | Xie, Y. Convective instability and nonlinear transition in rotating-disk boundary layers of an infinite rotor-stator cavity / Y. Xie, Q. Du // Перспективные двигатели и энергетические установки : материалы междунар. форума (16–18 июня 2026 г.) / М-во науки и высш. образования Рос. Федерации, Самар. нац. исслед. ун-т им. С. П. Королева (Самар. ун-т) ; редкол.: Е. В. Шахматов, А. И. Ермаков. - Самара : Изд-во Самар. ун-та, 2026. - С. 77-78. |
| Abstract: | The accurate prediction of flow state evolution and laminar-to-turbulent transition within rotor-stator cavities is fundamentally critical for the predictive analytics and advanced design of modern aero-engines. Given that the flow in the rotating-disk boundary layer of an infinitely rotor-stator cavity closely resembles the von Kármán boundary layer, it theoretically exhibits both convective and absolute instabilities. This study systematically investigates the convective instability characteristics induced by the stationary mode—defined precisely by a temporal frequency a co-rotating frame—and its subsequent transition process to turbulence. |
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| Other Identifiers: | RU\НТБ СГАУ\588653 |
| Appears in Collections: | Перспективные двигатели и энергетические установки |
| File | Size | Format | |
|---|---|---|---|
| file-77-78.pdf | 1.02 MB | Adobe PDF | View/Open |
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