The invention provides a fixed-plane-shape waverider design method and system using a straight shock wave external flow field, and belongs to the field of hypersonic aerodynamic layout design. In the osculating cone method, an axisymmetric straight shock wave external flow field is used to replace a conical flow, the front half part of the straight shock wave external flow field is generated by using an inverse characteristic line method, the rear half part is generated by using a characteristic line method to supplement the flow field range, and the shape of the object plane boundary of the rear half part is changed to control the pressure distribution of a reference flow field. Further, the volume and aerodynamic performance of the generated appearance are changed; and then realizing wave rider design of a given plane shape by applying a geometric design relationship in an osculating method. According to the invention, a reference flow field is replaced by an axisymmetric external flow field from a conical flow, so that the design space of the fixed-plane-shaped waverider is effectively expanded, and the aerodynamic performance of the fixed-plane-shaped waverider is improved.
本发明提出一种使用直激波外流场的定平面形状乘波体设计方法及系统,属于高超声速气动布局设计领域。在密切锥方法中使用轴对称直激波外流场代替锥形流,直激波外流场的前半部分使用逆特征线法生成,后半部分使用特征线法生成,以补充流场范围,并通过改变后半部分物面边界的形状以控制基准流场的压力分布,进而改变所生成外形的容积和气动性能;然后应用密切方法中的几何设计关系实现给定平面形状的乘波体设计。本发明将基准流场由锥形流替换为轴对称外流场,有效扩大定平面形状乘波体的设计空间,并改善定平面形状乘波体的气动性能。
Design method and system for fixed-plane-shape waverider using direct shock wave external flow field
一种使用直激波外流场的定平面形状乘波体设计方法及系统
14.03.2025
Patent
Elektronische Ressource
Chinesisch
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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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