Self-excited periodic oscillations in a supersonic laminar flow past a blunt-fin body mounted on a plate

Results of numerical simulation of supersonic gas flow past a blunt fin mounted on a flat plate with developing laminar boundary layer are presented. The calculations cover flow cases with the freestream Mach number of 6.7 and three different Reynolds numbers. A detailed analysis of flow characteris...

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Published inJournal of physics. Conference series Vol. 1697; no. 1; pp. 12223 - 12228
Main Authors Kolesnik, E V, Smirnovsky, A A, Smirnov, E M
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.12.2020
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Summary:Results of numerical simulation of supersonic gas flow past a blunt fin mounted on a flat plate with developing laminar boundary layer are presented. The calculations cover flow cases with the freestream Mach number of 6.7 and three different Reynolds numbers. A detailed analysis of flow characteristics such as temperature and surface heat flux are presented. In the smaller Reynolds number case, solution is steady-state and agrees very well with known numerical and experimental data. In case of larger Re values, the flow becomes periodic. These regimes are characterized by self-excited non-linear oscillations with almost the same fundamental frequency.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1697/1/012223