Experimental Investigation on Off-Design Performances of Double-Swept Waverider

Wind-tunnel tests of the double-swept waverider were performed in the off-design states, aiming to analyze its potential advantage in wide-speed performances. The test configurations were generated using the planform-customized waverider design, developed from the osculating-cone method. Then models...

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Bibliographic Details
Published in:AIAA journal 2023-04, Vol.61 (4), p.1596-1607
Main Authors: Liu, Chuanzhen, Liu, Rongjian, Meng, Xufei, Bai, Peng
Format: Article
Language:English
Subjects:
Aerodynamic forces
Aerodynamic stability
Computational fluid dynamics
Configuration management
Design
Drag
Efficiency
Experiments
Flow simulation
Flow stability
Fluid dynamics
Hypersonic wind tunnels
Longitudinal stability
Mach number
Reynolds number
Stability analysis
Waveriders
Wind tunnel testing
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Summary:Wind-tunnel tests of the double-swept waverider were performed in the off-design states, aiming to analyze its potential advantage in wide-speed performances. The test configurations were generated using the planform-customized waverider design, developed from the osculating-cone method. Then models of double-swept waveriders with the bend and cusp head were fabricated, and compared with a model of a single-swept waverider also built using the same method. A variety of experiments in their on-design and off-design states were performed in the hypersonic wind tunnel FD-07 of our institute, and computational fluid dynamics were employed to simulate flowfields as a supplement. According to the wind-tunnel tests and flow simulations, the aerodynamic forces and longitudinal stability were obtained and analyzed. The aerodynamic performance of the double-swept waverider did not fall significantly when deviating from the design states. The general trend was that, as Mach number increased, the lift-to-drag ratios dropped slightly. The double-swept waverider featured large longitudinal stability margin in hypersonic states, and the change in Mach number had little effect on longitudinal stability. Compared with the single configuration, the double-swept waverider suffered a decrease in lift-to-drag ratio, but showed a significant improvement in longitudinal stability.
ISSN:0001-1452
1533-385X
DOI:10.2514/1.J062254