The results show that the drag of grid fins is little affected by width to chord ratio,the normal force of grid fins was large,and that the smaller was the ratio,the better was .

With the issue that structural nonlinearity has great effect on dynamic characteristics of high aspect ratio wing,the finite element modeling is built for high aspect ratio composite wing by using MSC Patran and Nastran,which is modeled as a thin-walled box beam.

Vortex control in low aspect ratio flying wing;

In order to improve the lateral control ability of the low aspect ratio flying wing aircraft, a vortex control method is designed which can provide rolling moment for the aircraft, and the effects of leading dissymmetrical vertical injects on flow structure are studied.

Neural network control in active vortex control based on low aspect ratio flying wing;

Influence of chordwise bending stiffness on aeroelastic characteristics of flexible high-aspect-ratio wing