Numerical investigations are conducted to evaluate the effectiveness of bypass channels in suppressing the aerodynamic coefficients of a stationary circular cylinder. The aerodynamic coefficients, which vary with the geometric shape, thickness, entrance location, and exit location of bypass channels, are given attention. Compared with the bare cylinder, the flow from bypass channels can weaken the cross-communication between the bilateral shear layers of the cylinder and suppress the alternating vortex shedding in the wake. Under the optimal pa...
