Experimental Study for Measuring Flow Rate Using Broad-Crested Weirs

The broad-crested weir consider as a hydraulic components frequently used in irrigation as well as in drainage networks and water treatment plants. A rectangular broad-crested weir has various merits where it is essential to determine the measurement of a variety of discharges on natural streams. The laboratory measures used in this study were taken on a rectangular broad-crested weir shape at various flow rates to test the flow pattern above a rectangular broad-crested weir. Furthermore, a formula to calculate the discharge coefficient of rectangular broad-crested weirs is also offered to compare the flow rate obtained by using the weirs with actual flow meter readings. As a result, the outcomes of the study indicated the coefficient of discharge (C_d) value increases with increasing the ratio (H/P_w) for each flow state.