ATZ - A Digital Approach to the Aeroacoustic Evaluation of HVAC Blowers

OEMs are increasingly focusing on the acoustic efficiency of components and subsystems in search for an overall reduction of the main noise contributors in passenger cars. This is particularly true with rotating machinery. Exa Corporation and Mahle Luxembourg investigated the prediction of an automotive HVAC module blower using a three-dimensional compressible and unsteady  Computational Fluid Dynamics (CFD) solver based on the Lattice-Boltzmann Method.

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