Аннотация
We have experimentally and numerically studied the influence of the ratio of the diameter of a cylinder with a frontal gas-permeable porous insert made of nickel sponge to the average pore diameter in the insert on the aerodynamic drag of this model body in supersonic airflow (M∞ = 4.85, 7, and 21). The analytical dependence of the normalized drag coefficient on a parameter involving the Mach number and the ratio of cylinder radius to average pore radius in the insert is obtained. It is suggested to use this parameter as a similarity criterion in the problem of supersonic airflow past a cylinder with a frontal high-porosity cellular insert.
Язык оригинала | английский |
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Страницы (с-по) | 225-228 |
Число страниц | 4 |
Журнал | Technical Physics Letters |
Том | 44 |
Номер выпуска | 3 |
DOI | |
Состояние | Опубликовано - 1 мар 2018 |