主催: 一般社団法人 日本機械学会
会議名: 第29回環境工学総合シンポジウム2019
開催日: 2019/06/25 - 2019/06/28
In order to establish prediction technology of fluid sound in air conditioning duct system, the prediction technology by numerical analysis is required. In this study, noise and pipe resonance as basic phenomena of fluid noise generated in the air conditioning duct were predicted by using numerical analysis. An experimental setup for the simulation model was installed in an anechoic room with supplying a smooth air flow and the acoustic characteristics of the noise from a square cylinder and a split plate at the duct end with the pipe resonance were observed. The simulation results reproduced the discrete frequency by the Aeolian tone and pipe resonance observed in the experiment qualitatively.