Aeroacoustic investigation of a flow pipe with a small cavity using the lattice Boltzmann method.

Daniel Mazzoni (1) , Ulf Kristiansen (2) , Anders Bakke Krogvig (2)

1 Sons
2 Department of Telecommunications

The lattice Boltzmann method has been used to study the flow and associated sound generation in a flow pipe having a cavity close to the pipe's entry section. The study is an initial survey on the use of this method for such an aeroacoustic problem and does not represent a detailed parametric investigation. It is shown that vortices are formed by flow separation at the pipe's inflow end and that they interact with the cavity geometry. A basically reactive sound field is generated in the modeled geometry.

Mots clés: Aeroacoustic; lattice Boltzmann method

Domaines: Acoustique [physics.class-ph]; Acoustique [physics.class-ph]

Daniel Mazzoni, Ulf Kristiansen, Anders Bakke Krogvig. Aeroacoustic investigation of a flow pipe with a small cavity using the lattice Boltzmann method.. 35th Scandinavian Symposium on Physical Acoustics., Jan 2012, Geilo, Norway. ⟨hal-00805359⟩