The invention relates to an integrated design method of backpack type double-air-inlet-channel aircraft forebody which comprises the following steps: (1) designing a shock wave curve and an aircraft forebody lower surface characteristic curve, and generating an aircraft forebody lower surface; (2) designing a characteristic curve of the upper surface of the aircraft along a flow direction and a spanwise direction, and generating an aircraft forebody upper surface; (3) designing two-dimensional characteristic curves of air inlet inlets distributed on two sides of the center line of the aircraftforebody, and projecting the two-dimensional characteristic curves to the upper surface of the aircraft forebody generated in the step (2) to obtain an air inlet three-dimensional inlet curve; and (4) according to the three-dimensional inlet curve of the air inlet channel obtained in the step (3), carrying out streamline tracking in the corresponding conical flow field to obtain an inner flow channel of the air inlet channel. While the advantages of the waverider aircraft forebody are kept, the design of the hypersonic air inlet channel is carried out on the upper surface of the aircraft in asymmetrical mode, so that the aerodynamic performance of a propulsion system is improved while the high performance of the waverider aircraft forebody is exerted, and a new method is provided for internal and external flow integrated design.
本发明涉及一种背负式双路进气道飞行器前体一体化设计方法,包括以下步骤:(1)设计激波曲线与飞行器前体下表面特征曲线,并生成飞行器前体下表面;(2)设计飞行器上表面沿流向与展向特征曲线,并生成飞行器前体上表面;(3)设计分布于飞行器前体中心线两侧的进气道进口的二维特征曲线,并将其投影至步骤(2)生成的飞行器前体上表面获得进气道三维进口曲线;(4)根据步骤(3)获得的进气道三维进口曲线,在对应圆锥流场中进行流线追踪获得进气道内流通道。本发明在保持乘波飞行器前体优点的同时,在飞行器上表面以对称的形式开展高超声速进气道的设计,从而在发挥乘波飞行器前体高性能的同时提高推进系统的气动性能,为内外流一体化设计提供新方法。
Integrated design method of backpack type double-air-inlet-channel aircraft forebody
一种背负式双路进气飞行器前体一体化设计方法
2020-06-30
Patent
Electronic Resource
Chinese
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
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