抄録
The acoustic attenuation in the piping taking into consideration the effect of the gas flow was investigated. In this study, the acoustic attenuation by the energy loss due to the friction of the pipe was added to the acoustic attenuation in the static fluid. As a result, acoustic attenuation in the pipe is increased with increasing the gas flow, and the effect of the gas flow to the acoustic attenuation can be well evaluated by this model.
