New Method of Dilute Suspension Sedimentation Control by Horizontal Movement
Tantular Nurtono and Hideto Yoshida
This research addresses factors that control the stability of dilute suspensions in sedimentation processes in dynamic environments. Experimental and numerical studies have been conducted into the sedimentation velocity control of dilute suspension by horizontal movement, with initial particle concentrations up to 8 wt. %. An almost monodispersed particles were used as test particles. The effects of horizontal movement speed and amplitude on particle sedimentation process have been investigated. Under stationary conditions, all particles only settle down in vertical direction because of gravitational force. However, complicated particle motions arise in horizontal moving condition due to circulation flow. We found that horizontal movement can reduce particle sedimentation velocity or maintain the suspension stability.