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Settling Velocities of Polydisperse Concentrated Suspensions
Author(s) -
Ha Zhanyao,
Liu Shijie
Publication year - 2002
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450800501
Subject(s) - settling , sedimentation , ternary operation , particle (ecology) , binary number , current (fluid) , particle system , experimental data , mechanics , statistical physics , materials science , thermodynamics , physics , computer science , geology , mathematics , statistics , sediment , geomorphology , computer graphics (images) , oceanography , arithmetic , programming language
A model for particle settling velocities in polydisperse suspensions is proposed alongside normalized particle self and interaction mobilities. The model predictions are compared with other models (Davis and Gecol, 1994; and Al‐Naafa and Selim, 1989), as well as published experimental data. A general agreement was found between the current model and the existing data for binary dispersed particle systems except for one case where Φ L is fixed. For ternary dispersed particle systems, predictions from both the A‐S model and the current model agree well with the existing data. With the improved sedimentation coefficients, the D‐G model also produces satisfactory results.