A2 = Area of cross-section of the opening of the orifice plate
ΔP = Static pressure difference of the two sides of orifice plate i.e. (P1−P2). In this case, P1 is the static pressure before the plate and P2 is the static pressure after the plate.
ρ = Density of medium; in this case the medium is air so its value is 1.
m = Cross-section area ratio of plate of orifice opening with the duct opening = A2/A1 where as A1 is the cross-section area of the opening of the duct. In this experiment the design is in such a way that the value of m is 0.5.
Click on the Flow Control Device and then Anemometer traversing button
Measuring Table
Observation Table
Obs No.
Avg Velocity
Pressure
\({A2\sqrt{\frac{2(ΔP)}{ρ-(1-m^2)}}}\)
Q
Coeff. of Discharge
Graph Plot
Press OK, if you want to proceed for graph plot. Press cancel to exit from plotting
Proceed or Plotting
No more plates. Click Plot to view the canvas section.