Mixing Characteristics of High‐Viscosity Fluids under Forced Vertical Vibration. Issue 7 (30th March 2020)

• Record Type: Journal Article
• Authors: Zhan, Xiaobin; He, Yu; Sun, Zhibin; Shen, Baojun; Li, Xiwen
• Is Part Of: Chemical engineering & technology. Volume 43:Issue 7(2020)
• Page Start: 1327
• Page End: 1335
• Publication Date: 2020-03-30
• Subjects: Computational fluid dynamics -- Fluid mixing -- Forced vibration -- Interfacial disintegration -- Process intensification; Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.201800546
• Languages: English
• ISSNs: 0930-7516

Abstract

Abstract: The mixing characteristics of two initially stratified high‐viscosity fluids with a free surface under forced vertical vibration were studied experimentally and numerically. The flow characteristics and dynamics of the free surface and interface between liquids were analyzed and the effects of the vibration parameters on the mixing process were evaluated. The degree of mixing was determined by the frequency and amplitude of vibration. Effective mixing could not be achieved by merely using the deformation of the free surface because of the low fluidity of high‐viscosity fluids. However, an increase in vibration intensity disintegrated the free surface and interface, thereby significantly promoting the mixing of fluids and improving the mixing efficiency. Abstract : The degree of mixing of two initially stratified high‐viscosity fluids with a free surface subjected to forced vertical vibration was determined by frequency and amplitude of vibration. The vibration with sufficient intensity can lead to the disintegration of the free surface and interface, which could significantly promote the mixing of fluids and improve the mixing efficiency.