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Aircraft using submerged intake

An embedded air inlet, aircraft technology, applied in the field of aircraft, can solve the problems of large outlet flow field distortion, low total pressure recovery coefficient, etc., to reduce flow field distortion, improve total pressure recovery coefficient, and good engineering application prospects Effect

Inactive Publication Date: 2011-11-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low total pressure recovery coefficient and large outlet flow field distortion in the existing buried inlet, the present invention provides an embedded air inlet with high total pressure recovery coefficient and small outlet flow field distortion. air intake

Method used

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Embodiment Construction

[0012] see figure 1 As shown, the present invention discloses an aircraft using a buried air intake. In this embodiment, the type of the embedded air inlet is an embedded air inlet based on blowing air on the surface of the projectile.

[0013] The aircraft 1 using the embedded air inlet has a body part 2, the embedded air inlet based on air blowing on the surface of the projectile body is embedded in the body part 2, and the air inlet 5 is located in the body part 2 bottom. The body part 2 is provided with air blowing slots 3 , and the air blowing slots 3 are opened symmetrically on the body part 2 . Described body portion 2 has the head (unlabeled) that is positioned at front end and the tail portion (unlabeled) that is positioned at rear end, blowing slit 3 is positioned at before the air inlet 5 of submerged air inlet on body portion 2, and successively Several rows are arranged symmetrically, and at least one blowing slot 3 is arranged in each row. The included angle ...

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Abstract

The invention provides an aircraft using a submerged intake. In the invention, a plurality of pairs of air-blowing tanks are arranged on the surface of a projectile body using the submerged intake so as to blow off a boundary layer on the surface of the projectile body through high-pressure jet, which effectively improves the characteristic of the boundary layer in front of the entrance of the submerged intake and enhances quality of air flow entering the submerged intake so as to greatly improve total pressure recovery coefficient and lower flow field distortion index at the exit of the submerged intake.

Description

technical field [0001] The invention relates to an aircraft, especially an aircraft using a buried air intake. Background technique [0002] The buried air intake is a special air intake that buries the inlet into the fuselage or wing without any protruding parts. Such a design can effectively reduce the windward area of ​​the aircraft, reduce the windward resistance and the radar scattering cross-section area, thereby having better stealth performance. In addition to the above-mentioned advantages, because it is integrated with the missile body / fuselage, the circumferential size of the aircraft can be relatively reduced, which is beneficial to the placement, carrying and box-type launch of the aircraft. The above-mentioned many advantages make the buried air intake more and more concerned by researchers at home and abroad. [0003] However, it is precisely because the entrance of the buried air intake is completely placed in the boundary layer of the fuselage / aircraft bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D33/02
Inventor 谭慧俊孙姝程代姝温玉芬童悦张启帆
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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