Laplacian Speed of Sound
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Laplacian Speed of Sound
</dt>
The phase speed of a sound wave in a compressible fluid
if the expansions and compression are assumed to be adiabatic.
This speed a is given by the formula
</dd>
where cp and cv are the specific heats
at constant pressure and volume, respectively; R is gas constant;
and T is the Kelvin temperature. The value of this speed under
standard conditions in dry air is 331 meters per second. Compare
Newtonian speed of
sound. See acoustic velocity.
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References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
