Pressure Drop Difference in Smooth vs. Convoluted Hose 1

[CxLSS1]

Does anyone know how to compute the pressure drop across a convoluted hose as compared to a smooth bore hose using air as the working fluid?

I've been using Darcy-Weisbach for the smooth bore hose, but can't find any information about pressure drop in a convoluted hose.

Both hoses in question are 5/8" ID, same flow regime (same inlet pressure and flow rate), and the same length.

I found some good ideas on thread378-101803, but the equations were slightly confusing and any better data would help.

Thanks

 

[Latexman]

My reference says use e/d = 0.2625 for 5/8" corrugated flex hose.

Good luck,
Latexman

 

[vzeos]

CxLSS1,
Check out the attached link.

http://isddc.dot.gov/OLPFiles/FHWA/009470.pdf

 

[PieterStander]

Hope this helps

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