In your experiment, the flow-rate is defined as
where V is the total volume of fluid measured (e.g., with a bucket),
and 
is the amount of time (measured with e.g., a stopwatch) for which the fluid was measured.
The direction of flow is shown by the arrows in the pipe. Two pressure
gauges are attached to the pipe, a distance 
apart. The difference between the readings on these two gauges gives the pressure drop, 
, through the pipe over the length . We can get a good
idea of how the pressure drop is related to the flow-rate by plotting 
as a function of Q for many different flow
rates.
The Experiments
Enter data to completely map out
for flow-rates the customer needs. The customer requires a flow-rate from
0.7 to 7.0 m 
/h.
As you run the experiments your data will be plotted on the graph. Be sure you run enough experiments to throughly map out the entire region.
Experimental Setup for measuring Pressure Drop across a given pipe length as a function of Flow Rate.
