Aeroacoustic Simulation of Flow Through Porous Media Based on Lattice Boltzmann Method

Jiaxing Qi (), Manuel Hasert (), Harald Klimach () and Sabine Roller ()
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Jiaxing Qi: University of Siegen, Simulation Techniques and Scientific Computing
Manuel Hasert: Festo AG & Co. KG
Harald Klimach: University of Siegen
Sabine Roller: University of Siegen, Simulation Techniques and Scientific Computing

A chapter in Sustained Simulation Performance 2015, 2015, pp 195-204 from Springer

Abstract: Abstract This work presents the simulation of a flow through a porous silencer on the parallel super computing system Hornet at the HLRS in Stuttgart. This engineering problem poses a challenging task due to the complexity given the presence of multiple scales in space and time. We highlight the computational requirements for this simulation and the need for large scale data processing. The simulation is performed using our flow solver Musubi, which is based on the Lattice Boltzmann Method. We explain the design features of Musubi and show how these allow to exploit large scale parallel systems with distributed memory efficiently. Performance and scalability of Musubi is evaluated on Hornet with up to 2048 nodes. Using an interpolation supplemented local mesh refinement technique enables the simultaneous flow simulation inside the micro-porous structure and the sound wave propagation in bulk space. Some preliminary simulation results with this approach is finally provided, showing sound generation and propagation in this direct aero-acoustic setup.

Keywords: Porous Medium; Lattice Boltzmann Method; Sound Generation; Collision Step; Local Mesh Refinement (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-20340-9_16

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DOI: 10.1007/978-3-319-20340-9_16

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