A Composed Numerical Model Applied to High Amplitude Ultrasonic Resonators

In all the applications of high power ultrasounds, the prediction of the nonlinear acoustic field in the resonator should be realised for improving the processes. In this paper a new finite-volume algorithm in space composed with a time finite-difference scheme is proposed. It models the nonlinear behaviour of quasi-standing acoustic waves in a tube. The characteristics of the model are given and results obtained by numerical experiments are commented. This new scheme should constitute an advantage in industrial applications.