| 摘要 |
A method and apparatus for injecting a secondary supersonic stream into a primary supersonic stream. A secondary flow nozzle is designed to contain non-uniformities so as to produce stream-wise vortices. The primary supersonic flow is allowed to flow over a ramp surrounding the secondary nozzle. At the aft end of the ramp, stream-wise vortices appear in the primary flow rotating in the same direction as the vortices in the secondary stream. As a consequence, the vortex strength is increased, leading to enhanced entrainment in mixing of the two streams.
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