Analysis of flow through lateral rectangular orifices in open channels

作者：Hussain A^*; Ahmad Z; Ojha C S P

来源：Flow Measurement and Instrumentation, 2014, 36: 32-35.

DOI：10.1016/j.flowmeasinst.2014.02.002

• Rectangular orifice
• Open channel
• Flow measurement
• Uniform flow
• Coefficient of discharge

A side lateral orifice in open channel is hydraulic control structure widely used in hydraulic, irrigation and environmental engineering for diverting the flow from main channel to a secondary channel. In this paper, analytical relationships for the discharge through side orifice are developed accounting for the pressure distribution over the area of the orifice. The computed discharges using the proposed relationship are within +/- 5% of the observed values; however percentage error is more in case the discharge is computed using earlier equations.

• 出版日期2014-4