Abstract
In order to develop a new mixing procedure, we conduct DNS (direct numerical simulation) of vector control for free jet. The nozzle is periodically oscillated by vector control. From view of instaneous vortex structures, it is found that the structures are associated with oscillating frequency of the nozzle. In contours of ensemble averaged streamwise velocity, the jet diffuses largely in the oscillating direction. An increasing in mixing of the vector controlled jet is observed in mean entropy distribution. Therefore, the vector control can be expected for the improvement of mixing efficiency.
