Particle acceleration

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In acoustics, particle acceleration is the acceleration (rate of change in speed and direction) of particles in a sound transmission medium. When sound passes through a medium it causes particle displacement^[1] and as such causes changes in their acceleration.

The acceleration of the air particles of a plane sound wave is given by: $${\displaystyle a=\delta \cdot \omega ^{2}=v\cdot \omega ={\frac {p\cdot \omega }{Z}}=\omega {\sqrt {\frac {J}{Z}}}=\omega {\sqrt {\frac {E}{\rho }}}=\omega {\sqrt {\frac {P_{\text{ac}}}{Z\cdot A}}}}$$

• Sound
• Sound particle
• Particle displacement
• Particle velocity

• Relationships of acoustic quantities associated with a plane progressive acoustic sound wave - pdf