Equation relating the acoustic noise power produced by a flowing fluid through a conduit:
N = \frac{\rho \cdot D^2 \cdot u^8 }{\mbox{v}^5} |
where
| acoustic noise power | |
| fluid velocity | |
| speed of sound in a fluid | |
| fluid density | |
| characteristic linear dimension of the fluid conduit |
See also
Physics / Mechanics / Continuum mechanics / Fluid Mechanics / Fluid Dynamics / Fluid Flow / Pipe Flow
References
Lighthill M.J. 1954. On Sound Generated Aerodynamically: Turbulence as a Sound Source, Proc., Royal Soc. of London |