Control of Shock/Boundary-Layer Interaction for Hypersonic Inlets by Highly Swept Microramps

Autor:	Depeng Wang, Yue Zhang, Mo-chen Du, Hui-jun Tan
Rok vydání:	2015
Předmět:	Hypersonic speed Materials science business.industry Mechanical Engineering Aerospace Engineering Mechanics Moving shock Boundary layer symbols.namesake Fuel Technology Optics Mach number Space and Planetary Science Aerodynamic drag symbols Oblique shock Duct (flow) Shock tube business
Zdroj:	Journal of Propulsion and Power. 31:133-143
ISSN:	1533-3876 0748-4658
DOI:	10.2514/1.b35299
Popis:	The performance of hypersonic inlets is significantly affected by the presence of shock/boundary-layer interactions. To examine the potential of microramps for shock/boundary-layer interaction control in a finite-width duct, a detailed experimental and computational study has been conducted with a separated oblique shock/boundary-layer interaction generated by a 12 deg shock generator at Mach 3.5. Results show that the shock/boundary-layer interaction in the finite-width duct generates complex three-dimensional flow structures with significant swirling nature, and the traditional microramps cannot suppress the separation effectively. Therefore, a type of highly swept microramps with a large chord ratio and small incidence angle is brought forward and investigated. By the precompression effect, the dividing effect, the obstructing effect, and the energizing effect, the highly swept microramps with a height of 0.24 times the boundary-layer thickness show good control capability on the shock/boundary-layer i...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::84452424210fa1e0f6378b5e6e5c580e https://doi.org/10.2514/1.b35299 Zobrazit plný text záznamu