Water Flow Measurement

Water Flow Measurement .

Description of  Water Flow Measurement:

The measurement of flow rate is a fundamental topic to which a considerable degree of attention has been paid with the result that there are flow meters available using a wide variety of principles. DIDAC have chosen five types of flowmeter, which are all in common industrial use, to provide experiments in comparative flow measurement. Four flowmeters are described below which operate on the principle of either head loss, impulse or velocity. A fifth flowmeter, Rotameter working on the variable area principle, is described separately in the Hydraulics Bench leaflet.

Experimental Capabilities of  Water Flow Measurement:

1. Demonstration of use of Venturi Tube as a water flow meter and determination of the flow coefficient.
2. Establishment of the relationship that flow is proportiona to the square root of the pressure drop between entry and the venturi throat.  
3. Observation of degree of pressure recovery at the end of the divergent section of the Venturi Tube.

Accessories Required of Water Flow Measurement

1. Constant Head Inlet Tank
2. Variable Head Outlet Tank
3. Feedblock
4. Manometer Board
5. Rotameter (where direct flow readout is required) - optional
6. Pump Speed Display (optional)

DIMENSIONS AND WEIGHTS:

• Length: 75mm
• Width: 75mm
• Height: 500mm
• Nett weight: 1kg
• Case size: 0.004m³