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Aeroacoustical study of the serrated ventilation dampers

Kopania Joanna Maria, Bogusławski Grzegorz, Wójciak Kamil, Gaj Patryk

Vibrations in Physical Systems

2022

Vol. 33, nr 3

art. no. 2022313

The serrated ventilation dampers for regulation of airflow volume were tested. The computer fluid flow analysis was conducted using the Comsol program. The nature of the flow through the serrated ventilation damper was analyzed to identify the different turbulence regions formed on the airflow field. Additionally, the aerodynamical and acoustical parameters of these blades of ventilation dampers with different serrated trailing and/or leading-edge were studied. The aeroacoustic studies were done in the reverberation room. The sound power level and loss coefficient were determined for the studied models.