Bleed and Vortex Generator Effectiveness for Separation Prevention in a Transonic Diffuser

Oorebeek, JM; Babinsky, Holger

doi:10.2514/6.2014-2793

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Effects Of Bleed Together With Other Flow Control Techniques1

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“…Integration of the bleed and vortex generator (VG) has been also proposed and examined for high-speed intakes. 43,44 For this combination to be effective, the bleeds should be applied at the corners, and VGs should be simultaneously located at the center-span of the duct. This finding are shown in Figure 13.…”

Section: Effects Of Bleed Together With Other Flow Control Techniquesmentioning

confidence: 99%

Boundary layer suction for high-speed air intakes: A review

Sepahi-Younsi

Feshalami

Maadi

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part G:

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The paper summarizes recent developments in boundary layer suction for high-speed air intakes. Bleed has been efficiently used in supersonic and hypersonic intakes for three primary reasons: to improve the performance of the intake, to reduce the starting Mach number of the intake, and to postpone the onset of buzz oscillations. A bleed system has many characteristics such as the bleed entrance and exit areas, bleed entrance slant angle and position, and bleed type (slot or porous and ram-scoop or flush). Each of these parameters has significant impacts on the intake performance and stability that have been reviewed in this study. In addition, the effectiveness of other flow control methods has been compared with the bleed method.

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Section: Effects Of Bleed Together With Other Flow Control Techniquesmentioning

confidence: 99%