CFD を用いた振動流場におけるシリカゲル粒子の吸着解析

抄録

This study focuses on the phenomenon that the adsorption speed is improved by acoustic wave. An experimental study reported the velocity amplitude of acoustic wave is closely related to the adsorption acceleration. The purpose of this study is to elucidate the adsorption acceleration phenomenon by CFD analysis. A model representing a packed bed was created and analyzed. A result showed that the adsorption of a silica gel particle is faster on the upstream side than on the downstream side in uniform flow, which indicates good agreement with the calculation of Mcbain equation. In addition, adsorption analysis with some oscillatory flows reproduced the adsorption enhancement similar to the experimental results. It suggests that the calculation by CFD can estimate the behavior of adsorption in an oscillating flow.