| Autor: |
Valiullin, I. R., Kirilovskiy, S. V., Militsina, T. S., Mironov, S. G., Poplavskaya, T. V., Tsyryulnikov, I. S. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2504 Issue 1, p1-5, 5p |
| Abstrakt: |
The paper describes the results of experimental and numerical investigations of the influence of the angle of attack in the interval from 0 to 25° on the drag of a cylinder with a frontal porous insert in a supersonic flow with the Mach number of 7 and unit Reynolds number of 1.5·106 1/m. Wind tunnel experiments with aerodynamic force measurements are performed for cylindrical models 10 and 14.5 mm in diameter, which are equipped with frontal porous inserts made of a cellular-porous material (porosity 0.95 and pore diameter 1, 2, 3, and 4 mm). Numerical simulations are performed with the use of the ANSYS Fluent software for a three-dimensional toroidal skeleton model of the porous material. An analytical dependence of the normalized drag coefficient for different angles of attack on the similarity parameter, which involves the ratio of the cylinder diameter to the diameter of pores in the insert and the Mach number, is derived. The results are compared with the drag coefficient as a function of the similarity parameter, which was found previously for a zero angle of attack. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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