Effect of Particle Motion in Isolated Mixing Regions on Mixing in Stirred Vessel

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Naoto Ohmura²  Takafumi Horie²  Alatengtuya²  Nami Nishioka²  Mohamed N. Noui-Mehidi¹ 

[1] Thermal and Fluid Engineering, CMIT, CSIRO;Graduate School of Engineering, Kobe University

关键词: Laminar Mixing;    Stirred Vessel;    Chaotic Mixing;    Isolated Mixing Region;    Spherical Object;   

DOI  :  10.1252/jcej.09we087

来源: Maruzen Company Ltd

【 摘 要 】

References(8)Cited-By(2)Particle motions within isolated mixing regions (IMRs) were experimentally investigated at low Reynolds numbers. The trajectories of resin particles (density: 1377–1663 kg/m3; diameter: 5 mm) were analyzed using image processing techniques. The effect of particle motion on mixing was also investigated by the decolorization of fluorescent green dye by acid-base neutralization. After a particle was captured within an IMR, it moved along various torus orbits within the IMR. The radius of secondary circulation of the particle varied between 6–17.3 mm. It is speculated that this change in the radius enhances the exchange of material between an IMR and the surrounding active mixing region.

【 授权许可】

Unknown