The so-called Lattice-Boltzmann-Method is a relatively young numerical method for the computation of fluid mechanics. In contrary to 'classical' techniques of computational fluid dynamics where the Navier-Stokes-Equations - a system of partial differential equations describing the macroscopic behavior of a flow - are discretized and solved, the Lattice-Boltzmann-Method starts from the microscopic description of a flow, the Boltzmann-equation. It is a time-explicit procedure based on a strongly simplified kinetic theory, yet it is approximating the Navier-Stokes equations.

The presentation gives a short overview about some basic principles of the Lattice-Boltzmann-Method. Typical engineering applications, in particular the feasibility of describing aeroacoustic phenomena (i.e. sound generated by flows which typically requires a time-dependent calculation of pressure and density within a fluid), are pointed out, and a partitioned approach for the coupled simulation of flows and structures is presented.