  We present a new virtual laboratory developed with COMSOL Multiphysics for
the simulation of an acoustic levitator. Our computer application simulates the
acoustic pressure field and its interaction with a set of particles. Students
can interact with the system by having the possibility of changing the
frequency and distance parameters between transducers in real-time. We have
also developed and shared for free use the 3D printing design files for the
construction of necessary components for the acoustic levitator and the
instructions for its experimental implementation. The experimental results,
along with the virtual laboratory, provide the students with useful tools to
understand and interpret the acoustic phenomenon involved.
