An open channel consists of two long reaches of mild bed slope as shown in Figure P14.12. The second reach is milder than the first and terminates into a free overfall. D raw the water surface profile...

An open channel consists of two long reaches of mild bed slope as shown in Figure P14.12. The second reach is milder than the first and terminates into a free overfall. D raw the water surface profile for the following cases: (i) no gates exist, (ii) a gate is placed between the two reaches, and (iii) two gates are placed midway in the first and second reach, respectively.