Discharge for a partially submerged orifice as shown in fig is given by:
1
\(Q = {C_d} \times b \times \left( {{H_1} - {H}} \right) \times \sqrt {2gH} \)
2
\(Q = {C_d} \times b \times \left( {{H_1} + {H}} \right) \times \sqrt {2gH} \)
3
\(Q = {C_d} \times b \times \left( {{H_1} - {H_2}} \right) \times \sqrt {2gH} \)
4
\(Q = {C_d} \times b \times \left( {{H_1} + {H_2}} \right) \times \sqrt {2gH} \)