Acoustic radiation pressure on a small scatterer moving in a homogeneous and isotropic field

The problem of the acoustic radiation pressure on a small monopole scatterer moving in a homogeneous and isotropic acoustic field is investigated analytically. It is shown that a scatterer that is small in relation to the acoustic wavelength is decelerated during translational motion in a homogeneous and isotropic acoustic field due to nonlinear interaction with the field. This effect is an acoustic analog of the electrodynamic effect of charge deceleration in an electromagnetic field.