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CdW: $C_{dW}$

Constant drag coefficient of sidewalls. Drag on sidewalls is only computed if the wall does not extend up to the free surface. For example, in a compound channel, sidewall drag is only computed within the channel and not on the edges of the floodplain, as shown in Figure 18.

Figure 18: Example of a compound channel, for which sidewall drag is only computed in the channel and not on the shoals.
0.8\includegraphics{figures/compoundchannel}



2014-08-06