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Novel integrated aerodynamic configuration with ventral and dorsal double-sided inlets and its performance analysis.

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Názov: Novel integrated aerodynamic configuration with ventral and dorsal double-sided inlets and its performance analysis.
Autori: Sun, Yuhang, Luo, Shibin, Liu, Jun, Tian, Jiaqi
Zdroj: Physics of Fluids; Mar2025, Vol. 37 Issue 3, p1-22, 22p
Predmety: COMPUTATIONAL fluid dynamics, INLETS, HYPERSONIC aerodynamics, COMPARATIVE studies
Abstrakt: Aerodynamic configuration design is a crucial technology for air-breathing hypersonic vehicles, significantly influencing their flight quality. This paper presents a preliminary exploration of a novel dual-inlet aerodynamic configuration design to broaden the design perspectives and achieve superior overall performance for hypersonic vehicles. First, a design method for a double-sided intake aerodynamic configuration is developed, incorporating the method of characteristics, streamline-tracing technique, and multi-segment leading edge method. Using this method, an integrated configuration with double-sided intake that includes a ventral and a dorsal intake is subsequently designed. Second, utilizing an in-house graphics processing unit-accelerated computational fluid dynamics code, the flow characteristics in the isolator of the double-sided intake configuration are analyzed. Third, the aerodynamic performance, longitudinal static stability, inlet compression capability, thrust-drag balance, and wide-range overall performance of the integrated configuration are assessed, alongside a comparative analysis of conventional ventral and dorsal intake configurations. The study reveals that the newly designed double-sided intake integrated configuration exhibits aerodynamic performance intermediate between the dorsal intake and ventral intake configurations, while surpassing both significantly in terms of inlet performance and thrust-drag balance. However, its wide-range overall performance is not ideal. This research provides a fresh perspective on the aerodynamic configuration design of air-breathing hypersonic vehicles. [ABSTRACT FROM AUTHOR]
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Abstrakt:Aerodynamic configuration design is a crucial technology for air-breathing hypersonic vehicles, significantly influencing their flight quality. This paper presents a preliminary exploration of a novel dual-inlet aerodynamic configuration design to broaden the design perspectives and achieve superior overall performance for hypersonic vehicles. First, a design method for a double-sided intake aerodynamic configuration is developed, incorporating the method of characteristics, streamline-tracing technique, and multi-segment leading edge method. Using this method, an integrated configuration with double-sided intake that includes a ventral and a dorsal intake is subsequently designed. Second, utilizing an in-house graphics processing unit-accelerated computational fluid dynamics code, the flow characteristics in the isolator of the double-sided intake configuration are analyzed. Third, the aerodynamic performance, longitudinal static stability, inlet compression capability, thrust-drag balance, and wide-range overall performance of the integrated configuration are assessed, alongside a comparative analysis of conventional ventral and dorsal intake configurations. The study reveals that the newly designed double-sided intake integrated configuration exhibits aerodynamic performance intermediate between the dorsal intake and ventral intake configurations, while surpassing both significantly in terms of inlet performance and thrust-drag balance. However, its wide-range overall performance is not ideal. This research provides a fresh perspective on the aerodynamic configuration design of air-breathing hypersonic vehicles. [ABSTRACT FROM AUTHOR]
ISSN:10706631
DOI:10.1063/5.0258283