Blade Dampers Noise

Overview

Engineering reference data for Blade Dampers Noise in acoustics.

Key Formulas

Speed of Sound

$c = \sqrt{\gamma R T}$

Speed of sound in an ideal gas.

Sound Level

$L = 10 \log_{10}(I/I_0)$

Decibel level.

Wavelength

$\lambda = c / f$

Wavelength = speed / frequency.

Variables

References

• Original Source

Volume Flow Noise Corrections

When estimating noise from blade dampers, the base sound power level must be corrected according to the volume flow rate through the unit. Use the table below to find the appropriate correction value to add to or subtract from the base level.