Direct Numerical Simulation of Flow around a Circular Cylinder Controlled Using Plasma Actuators

Figure 11

Instantaneous vortical structure identified by isosurfaces of ‖Ω‖²−‖𝑆‖²=1.0: (a) Case NC; (b) Case 1, 𝑘₃=0.4; (c) Case 1, 𝑘₃=0.8; (d) Case 1, 𝑘₃=1.2.

(a)

(b)

(c)

(d)