Parshall Flume Flow Calculator

Calculate Flow Rate







Formula

The formula to calculate the flow rate (Q) is:

\[ Q = C \cdot W^n \cdot H^{1.55} \]

Where:

Definitions

Example

Let's say the coefficient is 0.6, the throat width is 12 inches, the head is 6 inches, and the exponent is 1. Using the formula:

\[ Q = 0.6 \cdot 12^1 \cdot 6^{1.55} \]

We get:

\[ Q = 0.6 \cdot 12 \cdot 15.59 \]

So, the flow rate (\( Q \)) is approximately 112.25 cubic feet per second.