Characterization of Hydraulic Power in Free-Stream Installations

Figure 8

The optimum velocity ratio as a function of the static drop coefficient and drag coefficient in a device for which . Isocurves for various values of are also shown; the area highlighted in red, where the hydraulic power is positive (i.e., received by the water) is merely of theoretical interest. This diagram presents the solutions to (24) in which (25) is inserted, when .