Investigation of Vortex Rings for Free Jet and Synthetic Jet at Various Reynolds Numbers and Strouhal Numbers

Figure 13

Vorticity fields of synthetic jet under different Reynolds numbers at St = 0.22 in near field: (a) St = 0.22, Re = 1100; (b) St = 0.22, Re = 5918; (c) St = 0.11, Re = 1100.

(a)

(b)

(c)