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Measurements and modelling of aero-acoustic installation effects in tangential fan

The objective of many actors in the automotive supply business companies is to provide their customers with air conditioning systems that guarantee the best thermal and acoustic comfort. The numerical means implemented for this purpose are (U)RANS and LBM simulations. The simulation of the noise generation mechanisms involves a fine prediction of the unsteady aspects of the flow, taking into account the distortion of the flow as well as the turbulence of the incoming flow. These characteristics are however not sufficiently well known in industrial systems, and can vary considerably depending on the shape of the ducts, the presence of valves and heat exchangers, etc. In addition, the effective simulation of aerodynamic and acoustic installation effects depends on a prior identification of the components responsible for the dominant acoustic emissions.The objectives of the research program detailed below are: 1) to provide experimental data to identify the effects of installation and dominant acoustic sources and to validate their numerical modeling 2) to identify, based on the results precedents, design criteria based on the simulation chains in place at the company.
Date:26 Feb 2019  →  Today
Keywords:Aero-acoustics, Tangential fan, Multi-ports eduction
Disciplines:Acoustics, noise and vibration engineering
Project type:PhD project