Flow Through an Orifice — MOE Lab Tender Details

Flow Through an Orifice

Shows flow through different orifices for different flow rates
Experiments
Investigations into a variety of orifices over a range of flow rates, including:
Determination of contraction and velocity coefficients
Calculation of discharge coefficient
Determination of actual discharge coefficient, and comparison with calculated values
Determination of the various coefficients over a range of flow rates to show the influence of Reynolds number
Study of the characteristics of different orifices

Specifications
Nominal dimensions of cylinder 400 mm x 160 mm diameter
Maximum flow rate: Nominally 13 L.min–1
Maximum Head: 365 mm
Manometer Scale: 100 mm to 390 mm
Pitot Micrometer
1 Division = 0.1 mm
1 Complete turn = 1 mm
Standard Sharp-edged Orifice
Diameter 13 mm
Area 1.327 x 10-4 m2
Orifice material: Aluminium
Additional Set of
Circular orifice dimensions:
Length 13 mm, with 60° contraction and 60° diverging section
Length 13 mm, with 29 mm diameter bell-mouth approach to 60° diverging section
Length 60 mm, with 29 mm diameter bell-mouth approach to 51 mm long parallel section
Length 60 mm, with 29 mm diameter bell-mouth approach, to 30° diverging section and 25 mm long parallel section
Triangular orifice dimensions: Each side nominally 12.1 mm, including 1.5 mm corner radius
Square orifice dimensions: Each side 9 mm
Orifice material: Aluminium
Nett dimensions : 670 mm x 400 mm x 350 mm, 6.5 kg