熱音響サイレンサーの性能評価

抄録

Noise countermeasures are an important engineering problem, and acoustic analysis methods for noise prediction and reduction have been widely studied. In a thermoacoustic engine, the sound is generated when the air vibrates due to the temperature gradient inside the pipe. Applying this effect may reduce noise by using the temperature distribution. Therefore, the purpose of this study is to analysis an acoustic space with a temperature gradient using a concentrated mass model. In this report, we consider the silencing effect of thermoacoustic silencer with open-end by conducting experiment and numerical calculation.