CHEN Qian, BAI Peng, LI Feng. Morphing aircraft wing variable-sweep: two practical methods and their aerodynamic characteristics[J]. ACTA AERODYNAMICA SINICA, 2012, 30(5): 658-663.
Citation: CHEN Qian, BAI Peng, LI Feng. Morphing aircraft wing variable-sweep: two practical methods and their aerodynamic characteristics[J]. ACTA AERODYNAMICA SINICA, 2012, 30(5): 658-663.

Morphing aircraft wing variable-sweep: two practical methods and their aerodynamic characteristics

  • In order to explore the methods of morphing aircraft variablesweep and their aerodynamic characteristics, numerical simulation of the flow fields of a rotating variablesweep wingbody and a shearing variablesweep wingbody was conducted, and the aerodynamic characteristics and its mechanism were analyzed. Numerical simulation method of viscous compressible flow and hybrid grid of prismhexahedron were used. The results demonstrate that: shearing variablesweep has better characteristics than rotating variablesweep in that the former has better lifttodrag ratio and drag when flying at a speed in the range from M∞ 0.3 to M∞ 0.8, and the main reason is distinct flow field structure caused by the different variablesweep methods.
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