Numerical simulation of particle motion in an ultrasound field using the lattice Boltzmann model |
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| Institution: | 1. School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal, Penang 14300, Malaysia;2. School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal, Penang 14300, Malaysia;3. Universiti Kuala Lumpur Malaysian Spanish Institute, Kulim Hi-TechPark, Kulim, Kedah 09000, Malaysia |
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| Abstract: | In this paper we investigate the motion of small particles suspended in a fluid through which an ultrasound field is propagating. The application of the lattice Boltzmann model to this problem is considered using a two dimensional model. Particles in an ultrasound field are observed to move with a mean particle motion. Further, the time-averaged force on a fixed cylinder is computed and found to be in good agreement with a theoretical expression for the radiation force. Simulations are performed with a single particle, although the approach can equally be applied for a larger number of particles. |
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