A hybrid approach for simulating clarinetlike systems involving the lattice Boltzmann method and a finite difference scheme

Abstract

The lattice Boltzmann (LB) method is becoming an increasingly important technique for the simulation of problems involving the interaction between acoustic and fluid fields. New LB algorithms allow the representation of moving boundaries at low Mach numbers. In this work we present the implementation of a hybrid model involving one such LB algorithm coupled to a finite difference scheme to simulate the fluid-structure interaction at the reed of a two-dimensional clarinetlike system. The results of the simulation for different input pressures and reed parameters are compared with the results provided by the related literature. [The first author was supported by CAPES (Brazil).]