Flow Over Notches Apparatus Manufacturer,Supplier and Exporter
Product Code : SEL-FMM-11042
Quick Answer: Students use the Flow Over Notches Apparatus to determine the coefficient of discharge of rectangular and triangular notches at different rates of flow, in a 1000 x 250 mm open flow channel.
Last updated: October 2026
Key Features
- Open flow channel, 1000 x 250 mm, for smooth flow of water
- Notches changed by a simple bolting arrangement
- Rectangular notch, 80 mm, in aluminium or brass
- Triangular notches in three angles, in aluminium or brass
- Flow control valve to vary the discharge
- Transparent piezometer tubes with scale, measuring tank and stop clock
Technical Specifications
| Specification | Value |
|---|---|
| Rectangular notch | 80 mm, aluminium or brass |
| Triangular notches | Three angles, aluminium or brass |
| Open flow channel | 1000 x 250 mm |
| Head measurement | Transparent piezometer tubes with scale |
| Measuring tank | 295 x 345 x 345 mm |
| Sump tank | 900 x 350 x 350 mm |
| Timing | Stop clock |
About This Product
Notches are a common way of measuring flow in open channels, and this apparatus shows how the coefficient of discharge is found for each shape. With the rate set at the control valve, water runs along the open channel and over the fitted notch; head is read on the piezometer tubes, while the measuring tank and stop clock give the actual discharge. Because notches bolt on and off, one channel serves the whole set.
Frequently Asked Questions
Which notches are used on the Flow Over Notches Apparatus?
A rectangular notch of 80 mm and triangular notches in three angles, each available in aluminium or brass. They are changed on the channel by a simple bolting arrangement.
What is the aim of the experiment?
To determine the coefficient of discharge of the given external flow measuring notches for different rates of flow, using the flow control valve to change the discharge.
Related: Fluid Mechanics Models, Orifice And Mouthpiece Apparatus, Orificemeter Apparatus, Verification of Bernoullis Theorem.
For a quotation on the Flow Over Notches Apparatus, contact School Educational Instrument.
