+Linear Flow Orifice Meter Sutro Weir Design Documentation+
+Mathcad Code+
the mathcad code can be found [here|^Sutro Weir solution.xmcd]. You will need to have mathcad installed on your computer in order to open the file.
+Documentation+
*Note :* The values used in this documentation are not static and do not correlate to actual design parameters.
Inputs
Inputs are the data that must be entereed by the user in order to design the sutro wier for the specific application. The mathcad inputs are shown below
!inputs.bmp!
Unknown macro: {latex}
$$ Q_
Unknown macro: {max}
$$
= maximum flow through sutro wier, L/min
Unknown macro: {latex}
$$ H_
Unknown macro: {dmax}
$$
= the set height of the wier, cm
Unknown macro: {latex}
$$ C_d $$
= proportionality constant, the average value is 0.62
Unknown macro: {latex}
$$ \Pi_
Unknown macro: {sutro}
= {Q_
Unknown macro: {min}
\over Q_{max}} $$
= fraction of Qmax that is equal to Qmin, accounts for the fact that the linear region doesn't include the rectangular base
Unknown macro: {latex}
$$ \Pi_
Unknown macro: {Qratio}
$$
=
Unknown macro: {latex}
$$ \Pi_
Unknown macro: {sutro}
$$
= the use of two variables is just makes it easier to follow in the code.
Linear Proportionality
!linear proportionality.bmp!
Unknown macro: {latex}
$$ C_
Unknown macro: {linear}
$$
= linear proportionality, L/min/cm
Rectangular Base Width
!rectangular base width.bmp!
W = rectangular base width, cm
g = gravity, 9.8 m/s^2
Rectangular Base Height
!rectangular base height.bmp!
s = rectangualr base height, cm
Profile of curved portion of weir
!