Inner wave-riding turbine-based combined power inlet with binary variable geometry
A turbine-based combination and air inlet technology, which is applied in the direction of jet propulsion devices, gas turbine devices, machines/engines, etc., can solve the problems of not being able to meet the working Mach number range, etc., and achieve simple and reliable deformation, fulfillment of requirements, and good airflow quality Effect
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[0037] Designed a variable geometry inlet suitable for internal parallel TBCC combined power with a working Mach number range of 0-4 and a transition Mach number of 2.5. Due to the maximum operating Mach number of 4.0, a combination of sub-fuel ramjet and turbo engine is adopted. Adopting the internal multiplier type air inlet method to design the air inlet profile when the maximum working Mach number is 4.0. Therefore, the selected design parameters of the ICFC basic flow field: M1=4.0, M3=1.4, and the initial internal contraction angle is 10°. The design requirements for the shape of the inlet are: the outlet of the inlet is a regular rectangle with a length-to-height ratio of 1.6, and the center point of the flow field of the inlet is arranged at the center under the rectangular inlet. A simple and adjustable variable geometry scheme is designed based on the M4 basic profile. Attached figure 1 A three-dimensional schematic diagram of the entire internal parallel TBCC inle...
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