Quick Answer: Flow Over Weir Or Open Channel Apparatus is a flow channel set-up for studying flow over interchangeable sharp-crested, broad-crested and ogee shaped weirs, fed by a 1/2 H.P. monoblock centrifugal pump from a sump tank.
Last updated: October 2026
Key Features
Three interchangeable weirs: sharp-crested, broad-crested and ogee shaped
1/2 H.P. monoblock centrifugal pump drawing from the sump tank
Weir fitted at the end of a small flow channel, discharging into a collector
Collector water directed to the sump or to the measuring tank
Flow measured with measuring tank or calibrated water flow meter
Water pumped into the channel flows over the weir at its end and falls into a collector, from where it can return to the sump or be diverted into the measuring tank to find the flow rate. Weirs raise the water level upstream and can also measure flow in rivers or streams, and the three interchangeable shapes let FLUID MECHANICS LAB students compare how water passes over each.
Frequently Asked Questions
Q1. Which weir shapes are supplied? Three interchangeable weirs: sharp-crested, broad-crested and ogee shaped.
Q2. How is the flow rate measured? Water from the collector is directed into the measuring tank; a calibrated water flow meter is also listed for flow measurement.
Lab Equipments Ambala exports to schools, colleges and distributors in countries such as Eritrea, Vietnam and Albania.
