Abstract
Computing transient CFD simulations of turbocharger compressors is computationally very demanding. It is of fundamental importance to resolve turbulent structures at the location of their generation and to establish a fine enough grid to allow propagation of the resolved structures. This results in high-resolution grids, existing of more than 20 million cells. Applying Lighthill's analogy, it is possible to only resolve turbulent structures at their location of generation and compute the pressure propagation by using an additional, not that demanding, acoustic grid. This allows using coarser CFD grids in the inlet and outlet section. For transferring Lighthill's source terms from the CFD to the acoustic grid, advanced interpolation algorithms are used. The simulation results are validated by measurements of a cold gas test rig are considered
Original language | English |
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Title of host publication | INTER-NOISE and NOISE-CON Congress and Conference Proceedings |
Pages | 307-313 |
DOIs | |
Publication status | Published - 2021 |
Event | 50th International Congress and Exposition of Noise Control Engineering: INTER-NOISE 2021 - Washington DC, Virtuell, United States Duration: 1 Aug 2021 → 5 Aug 2021 |
Conference
Conference | 50th International Congress and Exposition of Noise Control Engineering |
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Country/Territory | United States |
City | Virtuell |
Period | 1/08/21 → 5/08/21 |