The insertion loss of louvered terminations positioned at the end of a rectangular duct is determined using acoustic finite element analysis. Insertion loss was determined by taking the difference between the sound power with and without the louvers at the termination. Analyses were conducted in the plane wave regime and the acoustic source was anechoic eliminating any reflections from the source. The effect of different louver configurations on insertion loss was examined. Parameters investigated included louver length, angle, and spacing between louvers. Based on the analyses, equations were developed for the insertion loss of unlined louvers.
A Parametric Investigation of Louvered Terminations for Rectangular Ducts
Sae International Journal of Passenger Cars. Mechanical Systems
Sae Int. J. Passeng. Cars - Mech. Syst
SAE 2015 Noise and Vibration Conference and Exhibition ; 2015
Sae International Journal of Passenger Cars - Mechanical Systems ; 8 , 3 ; 1137-1141
2015-06-15
5 pages
Aufsatz (Konferenz)
Englisch
Computational Investigation of Circular-to-Rectangular Transition Ducts
Online Contents | 1994
|