Аннотация
We performed direct numerical simulations (DNS) of the turbulent annular jet flow for the Reynolds number Re = 8900 with three different values of the inner-to-outer diameter ratio (a = d / D = 0.3, 0.5, 0.7). The time-averaged velocity fields and fluctuations were analyzed. The low aspect ratio results in the shortest recirculation zone while for high a value the stagnation point features high level of turbulent kinetic energy. This is the evidence of the accompanying low-frequency oscillations of the recirculation zone.
Язык оригинала | английский |
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Номер статьи | 012007 |
Число страниц | 6 |
Журнал | Journal of Physics: Conference Series |
Том | 1105 |
Номер выпуска | 1 |
DOI | |
Состояние | Опубликовано - 28 ноя 2018 |
Событие | 34th Siberian Thermophysical Seminar Dedicated to the 85th Anniversary of Academician A. K. Rebrov, STS 2018 - Novosibirsk, Российская Федерация Продолжительность: 27 авг 2018 → 30 авг 2018 |