Shock detachment from curved wedges
| Autor: | Sannu Mölder |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Shock wave
Physics 020301 aerospace & aeronautics Leading edge business.industry Astrophysics::High Energy Astrophysical Phenomena Mechanical Engineering General Physics and Astronomy Choke 02 engineering and technology Mechanics Computational fluid dynamics 01 natural sciences 010305 fluids & plasmas symbols.namesake Classical mechanics 0203 mechanical engineering Mach number Deflection (engineering) 0103 physical sciences symbols business Astrophysics::Galaxy Astrophysics Pressure gradient Freestream |
| Zdroj: | Shock Waves. 27:731-745 |
| ISSN: | 1432-2153 0938-1287 |
| DOI: | 10.1007/s00193-017-0714-z |
| Popis: | Curved shock theory is used to show that the flow behind attached shocks on doubly curved wedges can have either positive or negative post-shock pressure gradients depending on the freestream Mach number, the wedge angle and the two wedge curvatures. Given enough wedge length, the flow near the leading edge can choke to force the shock to detach from the wedge. This local choking can preempt both the maximum deflection and the sonic criteria for shock detachment. Analytical predictions for detachment by local choking are supported by CFD results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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