Internally funded project
Acronym: Flownoise
Start date : 01.07.2002
End date : 30.06.2004
The goal of the Flownoise project is the simulation of flow-induced sound (noise). Flow induced noise is a very common phanomenon in the industrialised world, examples of noise pollution sources are fans, cars, trains and planes.
This project investigates the noise generation due to turbulent (air) flow. The challenge lies in the coupling of the existing solvers for the flow and the acoustic wave propagation respectively. In constrast to the better understood case of fluid-structure interaction where the data exchange can usually be restricted to surfaces, this problem requires the exchange of volume data. The computational requirements of the turbulent flow simulation necessitate the use of high performance computers.
The Department for System Simulation participates in the parallelisation of the acoustic solver and its portation to the Hitachi SR8000 supercomputer at the Leibniz Rechenzentrum in Munich. Also part of this participation is the development of a parallel Algebraic Multigrid algorithm used as preconditioner in the iterative solvers.