Effects of Unforced Bounday Layer Transition on the Performance of a Two-Dimensional Hypersonic Inlet

Hai Feng Miao; Lv Rong Xie; Weng Xiao Chai

doi:10.4028/www.scientific.net/AMM.275-277.466

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Effects of Unforced Bounday Layer Transition on...

Effects of Unforced Bounday Layer Transition on the Performance of a Two-Dimensional Hypersonic Inlet

Abstract:

Numerical investigation was conducted on a typical two-dimensional hypersonic inlet to study the influence of unforced boundary layer transition affected by compression ramp geometric parameters on the inlet performance. The numerical results show that the transition onset location on the compression ramp can be delayed by filleting the ramp intersection, and also the inlet's performance obviously improves when the transition onset location is delayed. Compared with full turbulent situation, when the boundary layer transition occurs, the unstart of the inlet is significantly mitigated, the heat transfer rate on the compression ramp decreases, both the total pressure recovery coefficient and mass flow rate increase at both design and off-design points. But the static pressure distribution along the ramp is fairly independent of the varieties of boundary layer.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

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466-471

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.466

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Online since:

January 2013

Authors:

Hai Feng Miao, Lv Rong Xie, Weng Xiao Chai

Keywords:

Bluntness, Boundary Layer Transition, Fillet Radius, Hypersonic Inlet, Inlet Performance

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