Novel Volume-Improved Design Method of Large-Slenderness-Ratio Cone-Derived Waveriders

A novel method is developed to improve the volume performance of large-slenderness-ratio cone-derived waveriders. Under the consideration of space utilization, loading capacity, and upper wall expansion performance, the design method is composed of an improved basic flowfield and a specially designe...

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Bibliographic Details
Published in:AIAA journal 2020-11, Vol.58 (11), p.4832-4847
Main Authors: Wang, Ding, Wang, Jiang-Feng, Li, Long-Fei, Yang, Tian-Peng, Chen, Jiang-Tao
Format: Article
Language:English
Subjects:
Design improvements
Design techniques
Drag
Mach number
Slenderness ratio
Waveriders
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Summary:A novel method is developed to improve the volume performance of large-slenderness-ratio cone-derived waveriders. Under the consideration of space utilization, loading capacity, and upper wall expansion performance, the design method is composed of an improved basic flowfield and a specially designed M-shaped flow capture curve. In addition, an improved evaluation method is proposed to provide a better measurement of volume performance for large-slenderness-ratio waveriders than the conventional method, which can also guide the design of volume-improved waveriders. The volume-improved waveriders and conventional cone-derived waveriders with slenderness ratios of more than nine are designed under the condition of a cruising altitude of 40 km and a Mach number of 12. After investigating their volume and aerodynamic performance, it can be found that the volume-improved waverider can achieve about a 48% volume increment, a 91% effective volume increment, and a four times larger volume growth rate compared to the conventional waverider. Furthermore, the lift-to-drag ratio of the volume-improved waverider is higher than that of the conventional waverider in the inviscid case, whereas it is smaller under the viscous condition. The gap in the viscous lift-to-drag ratio between the two waveriders reduces with the increasing attack of angle and is less than 8% at the design condition.
ISSN:0001-1452
1533-385X
DOI:10.2514/1.J059365