Aeronautics and astronautics – Aircraft power plants
Reexamination Certificate
2007-04-24
2007-04-24
Barefoot, Galen (Department: 3644)
Aeronautics and astronautics
Aircraft power plants
C137S015200
Reexamination Certificate
active
11140800
ABSTRACT:
An advanced aperture inlet (AAI) uses a three-dimensional, mixed compression inlet design derived from computational fluid dynamics (CFD) by streamline tracing a supersonic section from an axisymmetric mixed compression inlet solution. The axisymmetric design is used to obtain a CFD solution with slip wall boundaries at the inlet design point and serves as a flow field generator for the AAI. The AAI geometry is obtained by projecting a desired aperture shape onto a surface model of the external oblique shock. Streamline seeds are located on the projected aperture segments and transferred into the CFD solution space. The streamlines generated by these seeds inside the CFD solution space are then used as a wireframe to define the supersonic diffuser back to the throat location. Traditional design techniques are then used to define the subsonic diffuser from the inlet throat to the engine face.
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Klinge John D.
Leland Bradley C.
Lundy Brian F.
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