207 音響エネルギによる粉体除去法に関する研究(オーガナイズドセッション : O.S.1 音響エネルギー利用I)

概要

論文の詳細を見る
This paper deals with the powder removing techniques using acoustic energy. With experiments by one-dimensional duct with a speaker, the standing waves are excited and the removing mass of the powder on the tube is measured. Parametric studies are executed with the exiting frequency, sound pressure level and so on. In order to simulate this phenomena, fundamental simulation model are proposed. In this model, exciting force to the powder is estimated by oscillating flow theory by Morison et. al. Shear stress distribution by this force is compared with the strength of the powder which is estimated by the measurement of angle of repose. Based on these results, removing mass is estimated and it is clarified that this method agrees with the trends of experimental results. As a result it was confirmed that the proposed method is effective to estimate the removal efficiency of powder by acoustic standing wave.
一般社団法人日本機械学会の論文
2001-06-05