Apparatus for Flow Through an Orifice

General Features:

• Cylindrical Tank: Equipped with an adjustable diffuser to demonstrate flow through various orifices at different flow rates.

• Flow Measurements: Enables students to measure:

  • Decrease in flow

  • Stream contraction

  • Energy loss

• Orifice Studies: Allows the study of different shapes of orifices.

• Transparent Tank: Features a transparent cylindrical tank with a mounting base for easy replacement of different orifices.

• Pre-mounted Orifice: Supplied with a sharp-edged orifice already mounted for immediate use.

• Flow Rate Control: The water level can be adjusted via a flow rate control and an overflow pipe.

• Water Flow: Water exits the tank through the orifice.

• Pitot Assembly: Includes a sharp blade and a Pitot tube that can be positioned anywhere in the jet to measure various flow characteristics.

  • The blade is used to accurately measure the jet diameter.

• Manometer Connections: Manometers are connected to the Pitot tube and to a tapping in the base of the cylindrical tank to measure the total head at the orifice and within the jet.

Experiments to be Performed:

• Investigation of different orifices over a range of flow rates, including:

  • Determination of contraction and velocity coefficients

  • Calculation of the discharge coefficient

  • Comparison of the actual discharge coefficient with calculated values

  • Study of the influence of Reynolds number on various coefficients across different flow rates

  • Study of the characteristics of various orifice shapes

Order Code: 24257878.3
Apparatus for Flow Through an Orifice

Technical Specifications:

• Sharp-edged Orifice: 13 mm diameter.

• Circular Orifice Dimensions:

  • Length: 13 mm, with 60° contraction and 60° diverging section

  • Length: 13 mm, with a 29 mm diameter bell-mouth approach to a 60° diverging section

  • Length: 60 mm, with a 29 mm diameter bell-mouth approach to a 51 mm long parallel section

  • Length: 60 mm, with a 29 mm diameter bell-mouth approach to a 30° diverging section and a 25 mm long parallel section

• Triangular Orifice Dimensions: Each side nominally 12.1 mm, including a 1.5 mm corner radius.

• Square Orifice Dimensions: 9 mm square.

• Orifice Material: Aluminum.

• Additional Items: A printed operation manual will be supplied with the apparatus