Integrated assembly of binary adjustable air inlet passage and an aircraft forebody and design method

Abstract

The invention discloses an integrated assembly of a binary adjustable air inlet passage and an aircraft forebody. The integrated assembly comprises a first-stage fixed compression wedge surface, a second-stage adjustable compression wedge surface, a throat section, an expansion section, a lip mask, a driving motor, a connecting rod component and a side plate, the aircraft forebody comprises a first-stage bump, a second-stage bump, a transition molded surface and a strake wing. According to the integration method disclosed by the invention, the binary adjustable air inlet channel and the aircraft fuselage are highly fused, so that the external resistance of the aircraft is effectively reduced; the two-stage bulge molded surface of the fuselage not only can effectively eliminate the developed thick boundary layer of the fuselage, but also can decelerate and pressurize the supersonic airflow and improve the performance of the air inlet channel.

Description

technical field [0001] The invention relates to the field of aircraft design, and in particular, the invention relates to an integrated assembly of an air inlet and a front body of an aircraft. Background technique [0002] As one of the key components of the air-breathing engine, the supersonic inlet mainly undertakes the task of capturing and compressing the free flow and providing a high-quality flow field to the downstream engine. Generally, when an aircraft is flying at high speed, the airframe will develop a thicker boundary layer. After the intake port absorbs the low-energy flow in the boundary layer, the performance of the intake port will drop sharply, which will eventually affect the performance of the engine. Therefore, the boundary layer developed by the precursor must be dealt with in the design of the inlet. [0003] In the early days, in order to prevent the inlet from inhaling the boundary layer, a partition was set between the inlet and the body in enginee...

AI Technical Summary

Problems solved by technology

[0003] In the early days, in order to prevent the intake port from inhaling the boundary layer, the engineering would set up a partition between the intake port and the body. This method has many disadvantages, such as increasing the weight of the body and flight resistance.

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