Pipe-Line Construction


by Mech-Master
Tags: construction, pipeline
Mech-Master
Mech-Master is offline
#1
Feb26-12, 09:41 PM
P: 10
I'm designing a pipe-line and need to choose a specific value for pipe roughness. I'm trying to do dimensional analysis to find the needed pi groups.

That's what I did

ε (roughness of the pipe) = fcn(V,D, ρ μ)

V = Velocity

D = Diameter

ρ = density

μ = viscosity


Is there anything else I'm actually missing?
Phys.Org News Partner Science news on Phys.org
Better thermal-imaging lens from waste sulfur
Hackathon team's GoogolPlex gives Siri extra powers
Bright points in Sun's atmosphere mark patterns deep in its interior
schliere
schliere is offline
#2
Feb26-12, 09:52 PM
P: 32
If I recall correctly, friction in pipes has to do with the Reynolds Number (which is basically what you're going to find with those). There shouldn't really be any other parameters to consider. You can find graphs relating Reynolds #, relative roughness, and friction factor -- there are even some in my intro fluids book.

Does that answer your question?
shengshida123
shengshida123 is offline
#3
Mar27-12, 01:47 AM
P: 1
Thanks for your message.


Register to reply

Related Discussions
Pipe cutter is fixed on a pipe, with 3 forces acting on the pipe. Introductory Physics Homework 8
Connecting a pipe line to and existing distribution system Engineering, Comp Sci, & Technology Homework 0
pipe line in table. Math & Science Software 2
Pure oxygen in pipe line Mechanical Engineering 1
Pipe Line Failure Mechanical Engineering 11