Abstract:

A improved vortical lines method has been made to simulate the separated vortices slender wings. The idea of the improved method is to merge free vortical lines into cores so that chaotic motion of vortical lines can be avoided. On the other hand, to form cores is also a good way to simulate the actual vortical movement. The strength and position of vortical cores and lines can iteratively be got by satisfying boundary conditions. Numerical results show that convergent quality of the method is good. Results are basically consistent with experimental results. Conclusively, the vortical flow of slender wings can be satisfactorily simulated by the paper's method.

Key words: slender wings, separated flow, numerical calculation