Self radiation force on a moving monopolar source
arXiv:2205.09346 · doi:10.1017/jfm.2022.920
Abstract
The radiation force exerted on an object by an acoustic wave is a widely studied phenomenon since the early work of Rayleigh, Langevin and Brillouin and has led in the last decade to tremendous developments for acoustic micromanipulation. Despite extensive work on this phenomenon, the expressions of the acoustic radiation force applied on a particle have so far been derived only for a steady particle, hence neglecting the effect of its displacement on the radiated wave. In this work we study the acoustic radiation force exerted on a monopolar source translating at a constant velocity small compared to the sound speed. We demonstrate that the asymmetry of the emitted field resulting from Doppler effect induces a radiation force on the source opposite to its motion.
References in corpus (8)
- On the forces acting on a small particle in an acoustical field in a viscous fluid
- Observation of a single-beam gradient force acoustical trap for elastic particles: acoustical tweezers
- Cell selective manipulation with single beam acoustical tweezers
- Forces acting on a small particle in an acoustical field in a thermoviscous fluid
- Acoustic interaction forces between small particles in an ideal fluid
- Acoustic radiation force on small spheres due to transient acoustic fields
- Equivalence between angular spectrum-based and multipole expansion-based formulas of the acoustic radiation force and torque
- Acoustic radiation torque on a particle in a fluid: an angular spectrum based compact expression