Research Article

A Study of the Location of the Entrance of a Fishway in a Regulated River with CFD and ADCP

Figure 2

Parameter study of the wall roughness in the tailrace channel showing the development of the velocity profile at two different cross-sections for three different roughness values. The characteristics of the flow change completely when the equivalent sand-grain roughness increases from 0.0 to 0.3 m increasing it further to 0.5 m giving no noticeable additional effect.
327929.fig.002a
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327929.fig.002b
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327929.fig.002c
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