Valve : predict fuel losses with water test results

Hi!

I need help to convert hydraulic loss results obtained with a test with water into predictions for fuel. Note: flow is laminar (very slow).

Here's what I have in mind, please tell me if its correct. (please do not reply if you're not sure...)

0- I have test results with water were I have losses (inches of H20) for multiple flow points.

1- Calculate the K factor with the losses measured with water.

2- Plot the K factor vs. the Reynolds number (with water tests). (Which gives me a nice y=C*x^(-something) curve)

3- For fuel prediction, create flow points (2 GPH, 4 GPH, 6 GPH etc...

4- Calculate the Reynold number for the fuel points.

5- Use the appropriate K for the Re number obtained with the water tests.

6- Calculate the losses for the fuel flow points with the K.

Is this procedure ok?

If not, what would you suggest?

Thanks for your time,

Alexandre Lamoureux
Flight Dynamics Corporation