Effects of sweep angles on turbulent separation behaviors induced by blunt fin
| Autor: | Dundian Gang, Feng Zhang, Haibo Niu, Shihe Yi |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
0209 industrial biotechnology
Leading edge Fin Materials science Shock (fluid dynamics) Turbulence Mechanical Engineering Aerospace Engineering 02 engineering and technology Mechanics 01 natural sciences 010305 fluids & plasmas Vortex symbols.namesake 020901 industrial engineering & automation Planar Mach number 0103 physical sciences Swept wing symbols |
| Zdroj: | Chinese Journal of Aeronautics. 35:90-97 |
| ISSN: | 1000-9361 |
| DOI: | 10.1016/j.cja.2021.03.032 |
| Popis: | An experimental study was conducted on turbulent separation behaviors induced by blunt fins with different sweep angles at Mach number 6.0. The Nano-particle based Planar Laser Scattering technique (NPLS) was applied to visualize the flowfield, complemented by pressure tests. Sweep angles of the fins were 10°, 20°,…,60°, with the same leading edge diameter of 10 mm. Fine structures of the interference flowfield induced by blunt fins have been obtained, including the shock systems and vortexes. It was found that the features and shapes of the detached shock depended on sweep angle. When sweep angle 30°. Two peak values were detected on the centerline pressure distribution. The first peak did not rely on sweep angle, while the second peak value decreased with increasing sweep angle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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