Simplified Wave Celerity Calc for pipes 1

[Gac1]

Hi I'm looking for a simplified Wave celerity calculation for pipes in either I find Lots of given data via pipe manufacturers but are often they are very different for manufacturers who supply similar products. Metric would be preferable but Imperial will do

 

[Tremolo]

Gac1,

Hope this helps. Equation is good as long as a consistent set of units is used.

The wave speed in a thin-walled pipe can be calculated from,

a = sqrt[K/rho]/sqrt[1+c*(K/E)*(D/e)]

where,

sqrt = mathematical symbol for square root
a = sonic velocity
K = bulk modulus of the fluid; for liquid water, K is approximately constant and is 300,000 psi (6.0685E9 Pa)
rho = fluid density
c = constant depending on pipe support conditions. Range is 0.85 to 1.0 with a typical value of 0.91
E = Young’s modulus of elasticity for the pipe material
D = pipe diameter
e = pipe wall thickness

TREMOLO