Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge

Figure 9

Effect of the incoming flow frequency on vortex shedding from a beveled trailing edge of at , 20, 25, and 30. The contour indicates the instantaneous vorticity distribution at , and the power spectral density (PSD) is calculated from the drag coefficients in the range .

(a) Steady flow,

(b) Incoming flow frequency

(c) Incoming flow frequency

(d) Incoming flow frequency

(e) Incoming flow frequency