Research Article

Numerical Investigation of the Trailing Edge Shape on the Added Damping of a Kaplan Turbine Runner

Table 2

Frequency interactives.

(Hz)Frequency interactives

Initial frq.189.94
Step 1191.26
Step 2191.41

The final damping ratios of the blunt and Donaldson hydrofoil under different inlet velocities have been shown in Figures 10(a) and 10(b), respectively.